Podcast
Questions and Answers
What results from the degeneration of central cells in an epithelial mass?
What results from the degeneration of central cells in an epithelial mass?
- Formation of new capillaries
- Development of necrosis and liquefaction (correct)
- Enhancement of nutritional supply
- Increase in stable epithelial tissue
Which of the following describes the typical age range for the occurrence of apical periodontal cysts?
Which of the following describes the typical age range for the occurrence of apical periodontal cysts?
- Children under 12
- Adults (third to sixth decades) (correct)
- Elderly (over 70 years)
- Young adults (18-25 years)
Which feature is NOT typically associated with radicular cysts?
Which feature is NOT typically associated with radicular cysts?
- Presence of vital tooth (correct)
- Asymptomatic detections during x-rays
- Rounded, hard swelling at first
- Painless swellings
What causes the formation of a mucous extravasation cyst?
What causes the formation of a mucous extravasation cyst?
What is responsible for the increase in osmotic pressure within a cyst lumen?
What is responsible for the increase in osmotic pressure within a cyst lumen?
Which histopathologic feature is associated with a mucous extravasation cyst?
Which histopathologic feature is associated with a mucous extravasation cyst?
What radiographic feature may indicate an infection in a radicular cyst?
What radiographic feature may indicate an infection in a radicular cyst?
In apical periodontal cysts, which type of epithelium is commonly found in the lining?
In apical periodontal cysts, which type of epithelium is commonly found in the lining?
Where is a mucocele most commonly located?
Where is a mucocele most commonly located?
What physical change occurs to the swelling as the overlying bone is resorbed?
What physical change occurs to the swelling as the overlying bone is resorbed?
What is the typical appearance of a mucocele?
What is the typical appearance of a mucocele?
Which statement describes the size of radicular cysts?
Which statement describes the size of radicular cysts?
What is the recommended treatment for a mucous extravasation cyst?
What is the recommended treatment for a mucous extravasation cyst?
What characterizes the connective tissue lining of apical periodontal cysts?
What characterizes the connective tissue lining of apical periodontal cysts?
What type of bodies are formed from red blood cells in small capillaries found within the epithelial lining?
What type of bodies are formed from red blood cells in small capillaries found within the epithelial lining?
How is the treatment approach determined for larger cysts?
How is the treatment approach determined for larger cysts?
What is a potential complication of residual cysts?
What is a potential complication of residual cysts?
What fluid components are typically found in the cystic fluid of a cyst?
What fluid components are typically found in the cystic fluid of a cyst?
Inflammatory lateral periodontal cysts typically form at the side of which type of tooth?
Inflammatory lateral periodontal cysts typically form at the side of which type of tooth?
What is a primary characteristic of fully formed cysts regarding their epithelial lining?
What is a primary characteristic of fully formed cysts regarding their epithelial lining?
What can happen if periapical granulomas are misdiagnosed?
What can happen if periapical granulomas are misdiagnosed?
What is the primary characteristic of a static bone cyst?
What is the primary characteristic of a static bone cyst?
Which feature is commonly associated with multilocular radiolucency in certain jaw lesions?
Which feature is commonly associated with multilocular radiolucency in certain jaw lesions?
What type of tissue is typically found in the histopathological examination of dermoid cysts?
What type of tissue is typically found in the histopathological examination of dermoid cysts?
How is the diagnosis of a static bone cyst confirmed?
How is the diagnosis of a static bone cyst confirmed?
What is a common clinical feature of epidermoid cysts?
What is a common clinical feature of epidermoid cysts?
What treatment is generally indicated for soft tissue cysts of the jaws?
What treatment is generally indicated for soft tissue cysts of the jaws?
What imaging feature helps distinguish a static bone cyst?
What imaging feature helps distinguish a static bone cyst?
What is NOT a characteristic of the lesion described as having multilocular radiolucency?
What is NOT a characteristic of the lesion described as having multilocular radiolucency?
What is the typical appearance of a cyst that contains blood in the cystic space?
What is the typical appearance of a cyst that contains blood in the cystic space?
Which of the following treatments may be necessary for very large cysts of the mandible?
Which of the following treatments may be necessary for very large cysts of the mandible?
What is a possible complication of an odontogenic keratocyst?
What is a possible complication of an odontogenic keratocyst?
What type of epithelium is typically found in the lining of an odontogenic keratocyst?
What type of epithelium is typically found in the lining of an odontogenic keratocyst?
What is the most common site for odontogenic keratocysts?
What is the most common site for odontogenic keratocysts?
What content is typically found in an infected cyst?
What content is typically found in an infected cyst?
What is the demographic trend related to the occurrence of odontogenic keratocysts?
What is the demographic trend related to the occurrence of odontogenic keratocysts?
Which of these cysts is NOT listed as a differential diagnosis for odontogenic keratocysts?
Which of these cysts is NOT listed as a differential diagnosis for odontogenic keratocysts?
What is the most common developmental cyst of the neck?
What is the most common developmental cyst of the neck?
At what stage of development does the thyroid begin to form in the neck?
At what stage of development does the thyroid begin to form in the neck?
Which clinical feature is associated with a large thyroglossal tract cyst?
Which clinical feature is associated with a large thyroglossal tract cyst?
What type of epithelium is typically found lining a thyroglossal tract cyst above the level of the hyoid bone?
What type of epithelium is typically found lining a thyroglossal tract cyst above the level of the hyoid bone?
What is the primary treatment recommended for a thyroglossal tract cyst?
What is the primary treatment recommended for a thyroglossal tract cyst?
Where is a benign cervical lymphoepithelial cyst typically located?
Where is a benign cervical lymphoepithelial cyst typically located?
During what age range are benign cervical lymphoepithelial cysts most commonly seen?
During what age range are benign cervical lymphoepithelial cysts most commonly seen?
What type of tissues may be found in the wall of a thyroglossal tract cyst?
What type of tissues may be found in the wall of a thyroglossal tract cyst?
The central cells of the epithelial mass often receive adequate nutrition from surrounding capillaries.
The central cells of the epithelial mass often receive adequate nutrition from surrounding capillaries.
Apical periodontal cysts are primarily asymptomatic and often discovered incidentally on x-rays.
Apical periodontal cysts are primarily asymptomatic and often discovered incidentally on x-rays.
A radicular cyst can cause painful swellings when infected.
A radicular cyst can cause painful swellings when infected.
Radicular cysts can be identified radiographically as irregular, poorly defined radiolucencies.
Radicular cysts can be identified radiographically as irregular, poorly defined radiolucencies.
The epithelial lining of apical periodontal cysts consists of respiratory epithelium in all cases.
The epithelial lining of apical periodontal cysts consists of respiratory epithelium in all cases.
The enlargement of cysts is caused by a decrease in osmotic pressure of the cystic fluid.
The enlargement of cysts is caused by a decrease in osmotic pressure of the cystic fluid.
The typical age range for adults affected by apical periodontal cysts is from their late teens to early twenties.
The typical age range for adults affected by apical periodontal cysts is from their late teens to early twenties.
Radicular cysts may present with root resorption of the offending tooth.
Radicular cysts may present with root resorption of the offending tooth.
In fully formed cysts, the epithelial lining becomes regular and flattened.
In fully formed cysts, the epithelial lining becomes regular and flattened.
Hypo-plastic epithelium is commonly seen in newly formed cysts.
Hypo-plastic epithelium is commonly seen in newly formed cysts.
Residual cysts can cause problems with dentures and may lead to jaw fractures.
Residual cysts can cause problems with dentures and may lead to jaw fractures.
The connective tissue lining of periapical cysts predominantly contains macrophages only.
The connective tissue lining of periapical cysts predominantly contains macrophages only.
Marsupialization is a treatment option used for large cysts to avoid critical structures like the inferior dental nerve.
Marsupialization is a treatment option used for large cysts to avoid critical structures like the inferior dental nerve.
Inflammatory lateral periodontal cysts are more common than periapical cysts.
Inflammatory lateral periodontal cysts are more common than periapical cysts.
Cystic fluid typically contains serum albumin, globulin, and cholesterol.
Cystic fluid typically contains serum albumin, globulin, and cholesterol.
Degenerated plasma cells in cysts are identified as Russell bodies.
Degenerated plasma cells in cysts are identified as Russell bodies.
The primary treatment for a mucous extravasation cyst is surgical excision.
The primary treatment for a mucous extravasation cyst is surgical excision.
Mucous extravasation cysts are typically painful swellings located on the upper lip.
Mucous extravasation cysts are typically painful swellings located on the upper lip.
Mucocele can result from mechanical trauma to major salivary gland ducts.
Mucocele can result from mechanical trauma to major salivary gland ducts.
A ranula is specifically located on the ventral surface of the tongue and the floor of the mouth.
A ranula is specifically located on the ventral surface of the tongue and the floor of the mouth.
Histopathologically, an extravasated mucous pool is usually surrounded by dense bone tissue.
Histopathologically, an extravasated mucous pool is usually surrounded by dense bone tissue.
The Developmental Lateral Periodontal Cyst is a non-inflammatory cyst occurring adjacent to the root of a non-vital tooth.
The Developmental Lateral Periodontal Cyst is a non-inflammatory cyst occurring adjacent to the root of a non-vital tooth.
The common age range for individuals affected by the Developmental Gingival Cyst of Adulthood is from 20 to 30 years.
The common age range for individuals affected by the Developmental Gingival Cyst of Adulthood is from 20 to 30 years.
Gingival Cysts appear as small, well-circumscribed swellings and can be more than 1cm in diameter.
Gingival Cysts appear as small, well-circumscribed swellings and can be more than 1cm in diameter.
Dentigerous cysts are commonly found associated with erupted teeth.
Dentigerous cysts are commonly found associated with erupted teeth.
The primary origin of the Gingival Cyst of the New Born is the remnants of the dental lamina.
The primary origin of the Gingival Cyst of the New Born is the remnants of the dental lamina.
The male to female ratio for the Developmental Lateral Periodontal Cyst is 1:2.
The male to female ratio for the Developmental Lateral Periodontal Cyst is 1:2.
Most dentigerous cysts are symptomatic and lead to noticeable clinical features.
Most dentigerous cysts are symptomatic and lead to noticeable clinical features.
The age range most affected by dentigerous cysts is typically in the second and third decades of life.
The age range most affected by dentigerous cysts is typically in the second and third decades of life.
Inflammatory cells are typically observed in the connective tissue wall of the Developmental Lateral Periodontal Cyst.
Inflammatory cells are typically observed in the connective tissue wall of the Developmental Lateral Periodontal Cyst.
The histopathologic features of a Developmental Gingival Cyst of Adulthood include thick stratified squamous epithelium.
The histopathologic features of a Developmental Gingival Cyst of Adulthood include thick stratified squamous epithelium.
Expansion of the dentigerous cyst is linked to a decrease in cystic fluid osmolarity.
Expansion of the dentigerous cyst is linked to a decrease in cystic fluid osmolarity.
The typical radiographic feature of Developmental Lateral Periodontal Cyst is a small radiolucent area, usually over 1cm in diameter.
The typical radiographic feature of Developmental Lateral Periodontal Cyst is a small radiolucent area, usually over 1cm in diameter.
A dentigerous cyst can lead to root resorption of adjacent teeth.
A dentigerous cyst can lead to root resorption of adjacent teeth.
The lining of a dentigerous cyst typically consists of non-keratinized stratified squamous epithelium.
The lining of a dentigerous cyst typically consists of non-keratinized stratified squamous epithelium.
Ciliated epithelium is commonly observed in dentigerous cysts originating from maxillary locations.
Ciliated epithelium is commonly observed in dentigerous cysts originating from maxillary locations.
Pain and swelling are uncommon unless a dentigerous cyst becomes infected.
Pain and swelling are uncommon unless a dentigerous cyst becomes infected.
The eruption cyst is commonly found in the soft tissue of the gum overlying a tooth about to erupt.
The eruption cyst is commonly found in the soft tissue of the gum overlying a tooth about to erupt.
Keratocysts contain pus, which has an offensive smell when examined during operation.
Keratocysts contain pus, which has an offensive smell when examined during operation.
Ameloblastomas are a potential complication of cysts.
Ameloblastomas are a potential complication of cysts.
Odontogenic keratocysts are the most common type of odontogenic cyst.
Odontogenic keratocysts are the most common type of odontogenic cyst.
The treatment for an eruption cyst is typically surgical removal.
The treatment for an eruption cyst is typically surgical removal.
Inflammation associated with cysts can lead to epithelial hyperplasia and the presence of inflammatory cells.
Inflammation associated with cysts can lead to epithelial hyperplasia and the presence of inflammatory cells.
The treatment for very large cysts of the mandible may include marsupialization to facilitate shrinkage.
The treatment for very large cysts of the mandible may include marsupialization to facilitate shrinkage.
Keratocysts typically present with peripheral radiopaque borders in radiographic features.
Keratocysts typically present with peripheral radiopaque borders in radiographic features.
What happens to the central cells of an epithelial mass when they become separated from their nutrient source?
What happens to the central cells of an epithelial mass when they become separated from their nutrient source?
Describe the typical characteristics of a radicular cyst upon clinical examination.
Describe the typical characteristics of a radicular cyst upon clinical examination.
How does the osmotic pressure within a cyst lumen increase?
How does the osmotic pressure within a cyst lumen increase?
What is the typical radiographic appearance of an apical periodontal cyst?
What is the typical radiographic appearance of an apical periodontal cyst?
What occurs to the overlying bone as a radicular cyst progresses?
What occurs to the overlying bone as a radicular cyst progresses?
In which age group is the prevalence of apical periodontal cysts typically highest?
In which age group is the prevalence of apical periodontal cysts typically highest?
What type of epithelium can be found in the lining of an apical periodontal cyst?
What type of epithelium can be found in the lining of an apical periodontal cyst?
What factors may lead to a cyst enlarging over time?
What factors may lead to a cyst enlarging over time?
What is the origin of a dentigerous cyst and how does it affect tooth eruption?
What is the origin of a dentigerous cyst and how does it affect tooth eruption?
What are common clinical features of a dentigerous cyst?
What are common clinical features of a dentigerous cyst?
Describe the histopathological features of a dentigerous cyst.
Describe the histopathological features of a dentigerous cyst.
What radiographic characteristics typically indicate the presence of a dentigerous cyst?
What radiographic characteristics typically indicate the presence of a dentigerous cyst?
What age group is most commonly affected by dentigerous cysts?
What age group is most commonly affected by dentigerous cysts?
What role do cholesterol clefts and giant cells play in the connective tissue wall of a dentigerous cyst?
What role do cholesterol clefts and giant cells play in the connective tissue wall of a dentigerous cyst?
How does the expansion of a dentigerous cyst occur?
How does the expansion of a dentigerous cyst occur?
What potential complications may arise from an infected dentigerous cyst?
What potential complications may arise from an infected dentigerous cyst?
What are cholesterol clefts and in which context are they typically not observed?
What are cholesterol clefts and in which context are they typically not observed?
Why is the x-ray negative for the cyst of the palatine papilla?
Why is the x-ray negative for the cyst of the palatine papilla?
What is the primary cause of the globulomaxillary cyst's formation?
What is the primary cause of the globulomaxillary cyst's formation?
What distinguishes the nasolabial cyst from other cysts in terms of location?
What distinguishes the nasolabial cyst from other cysts in terms of location?
Describe the age and gender demographic typically associated with nasolabial cysts.
Describe the age and gender demographic typically associated with nasolabial cysts.
How does a median palatal cyst form?
How does a median palatal cyst form?
What clinical feature characterizes the median mandibular cyst?
What clinical feature characterizes the median mandibular cyst?
What is a traumatic bone cyst, and how does it differ from typical cysts?
What is a traumatic bone cyst, and how does it differ from typical cysts?
What treatment options are available for large cysts of the mandible?
What treatment options are available for large cysts of the mandible?
Describe the characteristic contents of an infected cyst.
Describe the characteristic contents of an infected cyst.
What clinical features differentiate an eruption cyst from other cyst types?
What clinical features differentiate an eruption cyst from other cyst types?
What is a potential complication of odontogenic keratocysts?
What is a potential complication of odontogenic keratocysts?
What age group is most commonly affected by odontogenic keratocysts?
What age group is most commonly affected by odontogenic keratocysts?
Identify one histopathologic feature of an odontogenic keratocyst.
Identify one histopathologic feature of an odontogenic keratocyst.
What clinical symptoms might an infected odontogenic keratocyst produce?
What clinical symptoms might an infected odontogenic keratocyst produce?
How does the size of an eruption cyst affect the need for treatment?
How does the size of an eruption cyst affect the need for treatment?
What is the primary clinical feature associated with the cyst described in the content?
What is the primary clinical feature associated with the cyst described in the content?
What age group is most commonly affected by the aneurysmal bone cyst?
What age group is most commonly affected by the aneurysmal bone cyst?
Describe the radiographic appearance of the cyst mentioned in the content.
Describe the radiographic appearance of the cyst mentioned in the content.
What is the recommended treatment for the cyst before closure?
What is the recommended treatment for the cyst before closure?
What is a common histopathological finding in the cyst cavity?
What is a common histopathological finding in the cyst cavity?
What clinical feature is commonly observed in cases of aneurysmal bone cyst?
What clinical feature is commonly observed in cases of aneurysmal bone cyst?
What is the typical location of the cysts mentioned in the content?
What is the typical location of the cysts mentioned in the content?
What is one suggested pathogenesis for the aneurysmal bone cyst?
What is one suggested pathogenesis for the aneurysmal bone cyst?
What is the primary characteristic of a thyroglossal tract cyst regarding its appearance?
What is the primary characteristic of a thyroglossal tract cyst regarding its appearance?
What type of epithelium lines a thyroglossal tract cyst below the level of the hyoid bone?
What type of epithelium lines a thyroglossal tract cyst below the level of the hyoid bone?
How does infection affect a benign cervical lymphoepithelial cyst?
How does infection affect a benign cervical lymphoepithelial cyst?
What is the recommended treatment for both thyroglossal tract cysts and benign cervical lymphoepithelial cysts?
What is the recommended treatment for both thyroglossal tract cysts and benign cervical lymphoepithelial cysts?
Identify the typical location of a benign cervical lymphoepithelial cyst.
Identify the typical location of a benign cervical lymphoepithelial cyst.
What age group is most likely to present with benign cervical lymphoepithelial cysts?
What age group is most likely to present with benign cervical lymphoepithelial cysts?
What connective tissue elements may be found in the wall of a thyroglossal tract cyst?
What connective tissue elements may be found in the wall of a thyroglossal tract cyst?
During which stage of fetal development does the thyroid begin to form?
During which stage of fetal development does the thyroid begin to form?
A cyst is a pathological cavity lined by epithelium containing _____ fluid or a semi-fluid material.
A cyst is a pathological cavity lined by epithelium containing _____ fluid or a semi-fluid material.
Odontogenic cysts arise from _____ epithelial cells.
Odontogenic cysts arise from _____ epithelial cells.
Inflammatory periodontal cysts include apical, lateral, and _____ cysts.
Inflammatory periodontal cysts include apical, lateral, and _____ cysts.
The predominant type of cyst, accounting for 65% of all cysts, is the _____ cyst.
The predominant type of cyst, accounting for 65% of all cysts, is the _____ cyst.
The epithelium associated with odontogenic cysts can be derived from the enamel organ and _____ rests of Malassez.
The epithelium associated with odontogenic cysts can be derived from the enamel organ and _____ rests of Malassez.
Non-odontogenic cysts include nasopalatine cysts and _____ cysts.
Non-odontogenic cysts include nasopalatine cysts and _____ cysts.
_____ cysts may include dermoid, epidermoid, and benign lymphoepithelial types.
_____ cysts may include dermoid, epidermoid, and benign lymphoepithelial types.
An apical cyst can be either apical or _____, related to the lateral root surface.
An apical cyst can be either apical or _____, related to the lateral root surface.
In a newly formed cyst, the epithelium is __-plastic.
In a newly formed cyst, the epithelium is __-plastic.
The connective tissue lining of apical periodontal cysts contains collagen fibers, fibroblasts, and ___.
The connective tissue lining of apical periodontal cysts contains collagen fibers, fibroblasts, and ___.
Cystic fluid typically contains serum albumin, globulin, cholesterol, and ___.
Cystic fluid typically contains serum albumin, globulin, cholesterol, and ___.
Larger cysts may require __ to avoid damaging the antrum or important structures.
Larger cysts may require __ to avoid damaging the antrum or important structures.
Inflammatory lateral periodontal cysts form at the side of the root of a __ tooth.
Inflammatory lateral periodontal cysts form at the side of the root of a __ tooth.
Residual cysts can cause trouble with __ and may enlarge significantly.
Residual cysts can cause trouble with __ and may enlarge significantly.
Multinucleated giant cells may be observed in the connective tissue lining of __ cysts.
Multinucleated giant cells may be observed in the connective tissue lining of __ cysts.
Degenerated plasma cells in the connective tissue lining are also known as __ bodies.
Degenerated plasma cells in the connective tissue lining are also known as __ bodies.
A developmental lateral periodontal cyst is a non-inflammatory cyst occurring adjacent to the root of a vital __________.
A developmental lateral periodontal cyst is a non-inflammatory cyst occurring adjacent to the root of a vital __________.
The most common age range for developmental gingival cysts of adulthood is between __________ years.
The most common age range for developmental gingival cysts of adulthood is between __________ years.
Gingival cysts appear as small, well-circumscribed painless swelling of the gingiva that is less than __________ in diameter.
Gingival cysts appear as small, well-circumscribed painless swelling of the gingiva that is less than __________ in diameter.
Bohn's Nodules, or gingival cysts of the newborn, originate from remnants of the __________ lamina.
Bohn's Nodules, or gingival cysts of the newborn, originate from remnants of the __________ lamina.
The most common clinical site for a lateral periodontal cyst is the mandibular __________ region.
The most common clinical site for a lateral periodontal cyst is the mandibular __________ region.
Histopathologically, the epithelial lining in the developmental lateral periodontal cyst consists of thin stratified __________ epithelium.
Histopathologically, the epithelial lining in the developmental lateral periodontal cyst consists of thin stratified __________ epithelium.
The appearance of a gingival cyst in adulthood includes a swelling of the __________ that appears nearly identical to the adjacent mucosa.
The appearance of a gingival cyst in adulthood includes a swelling of the __________ that appears nearly identical to the adjacent mucosa.
A developmental lateral periodontal cyst is commonly seen in individuals aged __________.
A developmental lateral periodontal cyst is commonly seen in individuals aged __________.
The pathogenesis of this cyst is associated with mild trauma to the jaw that causes bleeding and __________ formation within bone.
The pathogenesis of this cyst is associated with mild trauma to the jaw that causes bleeding and __________ formation within bone.
About __________% of patients have a history of prior trauma to the area of involvement.
About __________% of patients have a history of prior trauma to the area of involvement.
The cyst is often discovered accidentally on routine __________.
The cyst is often discovered accidentally on routine __________.
A cyst of the palatine papilla develops from the epithelial remnants in the palatine ______.
A cyst of the palatine papilla develops from the epithelial remnants in the palatine ______.
In the anterior region, the outline of the cyst is usually round or __________ in shape.
In the anterior region, the outline of the cyst is usually round or __________ in shape.
The cavity of the aneurysmal bone cyst may appear resembling a __________ sponge.
The cavity of the aneurysmal bone cyst may appear resembling a __________ sponge.
Globulomaxillary cysts arise from non-odontogenic epithelial entrapped at the site of fusion of the globular and maxillary ______.
Globulomaxillary cysts arise from non-odontogenic epithelial entrapped at the site of fusion of the globular and maxillary ______.
The nasolabial cyst is more commonly found in females with a ratio of ______:1.
The nasolabial cyst is more commonly found in females with a ratio of ______:1.
The lining of the cyst is often described as thin fibrous or __________ tissue without an epithelial component.
The lining of the cyst is often described as thin fibrous or __________ tissue without an epithelial component.
The median palatal cyst arises from epithelial remnants at the line of fusion of the palatal ______.
The median palatal cyst arises from epithelial remnants at the line of fusion of the palatal ______.
Aneurysmal bone cysts exhibit a slight __________ predilection, often affecting females more than males.
Aneurysmal bone cysts exhibit a slight __________ predilection, often affecting females more than males.
The cyst is classified as a __________ because it appears radiographically as a cyst-like lesion but lacks an epithelial lining.
The cyst is classified as a __________ because it appears radiographically as a cyst-like lesion but lacks an epithelial lining.
A ______ bone cyst is a bony cavity with no epithelial lining and often no fluid content.
A ______ bone cyst is a bony cavity with no epithelial lining and often no fluid content.
Radiographic features of the nasolabial cyst may show negative results but might cause bone ______ due to pressure.
Radiographic features of the nasolabial cyst may show negative results but might cause bone ______ due to pressure.
Histopathologic features of cysts may include lining by embryonic cuboidal epithelium or ciliated ______ epithelium.
Histopathologic features of cysts may include lining by embryonic cuboidal epithelium or ciliated ______ epithelium.
The clinical feature of a globulomaxillary cyst often includes its location between the maxillary lateral incisor and ______ teeth.
The clinical feature of a globulomaxillary cyst often includes its location between the maxillary lateral incisor and ______ teeth.
The static bone cyst appears as a cystic or ______ area on radiographic examination.
The static bone cyst appears as a cystic or ______ area on radiographic examination.
Fibrous connective tissue contains many blood-filled spaces and ______ blood cells.
Fibrous connective tissue contains many blood-filled spaces and ______ blood cells.
Dermoied and epidermoid cysts appear in the anterior part of the floor of the mouth and sub-mandibular and sub-______ areas.
Dermoied and epidermoid cysts appear in the anterior part of the floor of the mouth and sub-mandibular and sub-______ areas.
To confirm the diagnosis of a static bone cyst, a ______ is made where a radiopaque material is injected.
To confirm the diagnosis of a static bone cyst, a ______ is made where a radiopaque material is injected.
The appearance of a soft tissue cyst is described as ______ growing and may vary in size.
The appearance of a soft tissue cyst is described as ______ growing and may vary in size.
A thin layer of keratinized stratified squamous epithelium characterizes the histologic features of ______ cysts.
A thin layer of keratinized stratified squamous epithelium characterizes the histologic features of ______ cysts.
The treatment for dermoid and epidermoid cysts usually involves ______ removal.
The treatment for dermoid and epidermoid cysts usually involves ______ removal.
The contents of a cyst may include numerous sebaceous glands, hair follicles, and ______.
The contents of a cyst may include numerous sebaceous glands, hair follicles, and ______.
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Match the following features with the correct histopathological findings:
Match the following features with the correct histopathological findings:
What is the initial physical characteristic of the swelling associated with a radicular cyst?
What is the initial physical characteristic of the swelling associated with a radicular cyst?
The epithelial lining of apical periodontal cysts can include stratified squamous epithelium.
The epithelial lining of apical periodontal cysts can include stratified squamous epithelium.
What is a common feature of radicular cysts when infected?
What is a common feature of radicular cysts when infected?
The apical periodontal cyst typically occurs in adults, particularly those in their ___________.
The apical periodontal cyst typically occurs in adults, particularly those in their ___________.
Match the clinical features with their descriptions:
Match the clinical features with their descriptions:
What is a typical radiographic feature of a radicular cyst?
What is a typical radiographic feature of a radicular cyst?
Radicular cysts are commonly symptomatic and are often discovered during routine x-ray examination.
Radicular cysts are commonly symptomatic and are often discovered during routine x-ray examination.
What happens to the epithelial mass if its central cells do not receive sufficient nutrients?
What happens to the epithelial mass if its central cells do not receive sufficient nutrients?
What is the primary treatment recommended for a benign cervical lymphoepithelial cyst?
What is the primary treatment recommended for a benign cervical lymphoepithelial cyst?
A thyroglossal tract cyst can occur anywhere in the neck.
A thyroglossal tract cyst can occur anywhere in the neck.
What is the characteristic radiographic appearance of a static bone cyst?
What is the characteristic radiographic appearance of a static bone cyst?
What type of epithelium typically lines a thyroglossal tract cyst below the level of the hyoid bone?
What type of epithelium typically lines a thyroglossal tract cyst below the level of the hyoid bone?
Epidermoid cysts are typically painless and cause significant discomfort.
Epidermoid cysts are typically painless and cause significant discomfort.
The thyroglossal tract cyst is the most common ________ cyst of the neck.
The thyroglossal tract cyst is the most common ________ cyst of the neck.
What histopathologic feature is commonly seen in dermoid cysts?
What histopathologic feature is commonly seen in dermoid cysts?
Which of the following age groups is most commonly associated with benign cervical lymphoepithelial cysts?
Which of the following age groups is most commonly associated with benign cervical lymphoepithelial cysts?
Match the following cyst types with their primary characteristic:
Match the following cyst types with their primary characteristic:
The treatment for soft tissue cysts of the jaws generally involves _____ removal.
The treatment for soft tissue cysts of the jaws generally involves _____ removal.
What happens to teeth in the presence of multilocular radiolucencies?
What happens to teeth in the presence of multilocular radiolucencies?
What is a clinical feature of a thyroglossal tract cyst if it becomes infected?
What is a clinical feature of a thyroglossal tract cyst if it becomes infected?
Histopathologically, benign cervical lymphoepithelial cysts are primarily lined with columnar epithelium.
Histopathologically, benign cervical lymphoepithelial cysts are primarily lined with columnar epithelium.
Match the following features with their respective cysts.
Match the following features with their respective cysts.
A static bone cyst is a true cyst because it contains an epithelial lining.
A static bone cyst is a true cyst because it contains an epithelial lining.
What is the primary technique used to confirm a diagnosis of a static bone cyst?
What is the primary technique used to confirm a diagnosis of a static bone cyst?
What is the most common site for dentigerous cysts to occur?
What is the most common site for dentigerous cysts to occur?
Dentigerous cysts are more common in females than males.
Dentigerous cysts are more common in females than males.
What is the primary cause of dentigerous cysts?
What is the primary cause of dentigerous cysts?
The cyst lining of a dentigerous cyst is typically ___ cells thick.
The cyst lining of a dentigerous cyst is typically ___ cells thick.
Match the following clinical features with their corresponding cyst types:
Match the following clinical features with their corresponding cyst types:
Which radiographic feature is commonly associated with dentigerous cysts?
Which radiographic feature is commonly associated with dentigerous cysts?
An expansion of a dentigerous cyst is likely due to increased fluid accumulation.
An expansion of a dentigerous cyst is likely due to increased fluid accumulation.
What does the term 'dentigerous' refer to?
What does the term 'dentigerous' refer to?
What are the components typically found in cystic fluid?
What are the components typically found in cystic fluid?
Fully formed cysts have a regular and flattened epithelial lining.
Fully formed cysts have a regular and flattened epithelial lining.
What is the treatment approach for large cysts?
What is the treatment approach for large cysts?
Inflammatory lateral periodontal cysts form as a result of irritation of __________ tissue.
Inflammatory lateral periodontal cysts form as a result of irritation of __________ tissue.
Match the following cyst characteristics with their definitions:
Match the following cyst characteristics with their definitions:
Which of the following is a common complication of residual cysts?
Which of the following is a common complication of residual cysts?
Degenerated plasma cells, known as Russell bodies, are not typically found in apical periodontal cysts.
Degenerated plasma cells, known as Russell bodies, are not typically found in apical periodontal cysts.
What potential differential diagnosis could be considered for small radiolucencies?
What potential differential diagnosis could be considered for small radiolucencies?
What is the primary treatment for very large cysts of the mandible?
What is the primary treatment for very large cysts of the mandible?
An eruption cyst requires surgical treatment to ensure proper healing.
An eruption cyst requires surgical treatment to ensure proper healing.
Name one potential complication of an odontogenic keratocyst.
Name one potential complication of an odontogenic keratocyst.
The cyst contents of keratocysts typically include ________ seen during operation.
The cyst contents of keratocysts typically include ________ seen during operation.
What is a common radiographic feature of unilocular lesions associated with primordial cysts?
What is a common radiographic feature of unilocular lesions associated with primordial cysts?
Match the type of cyst with its treatment:
Match the type of cyst with its treatment:
Which of the following describes the appearance of an eruption haematoma?
Which of the following describes the appearance of an eruption haematoma?
Flashcards
Apical Periodontal Cyst
Apical Periodontal Cyst
A fluid-filled cavity lined by epithelium, typically developing from the proliferation of epithelial remnants within the tooth root region.
Mechanism of Enlargement
Mechanism of Enlargement
The process of growth and expansion of an apical periodontal cyst, driven by increased osmotic pressure within the cyst lumen.
Necrosis
Necrosis
The destruction of cell structures and tissues within the cyst, resulting in liquefaction and fluid accumulation.
Fluid Transport
Fluid Transport
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Epithelial Lining
Epithelial Lining
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Radiolucency
Radiolucency
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Bone Resorption
Bone Resorption
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Stratified Squamous Epithelium
Stratified Squamous Epithelium
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Epithelial Hyperplasia in Apical Periodontal Cysts
Epithelial Hyperplasia in Apical Periodontal Cysts
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Epithelial Lining Changes in Mature Cysts
Epithelial Lining Changes in Mature Cysts
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Connective Tissue Lining of Apical Periodontal Cysts
Connective Tissue Lining of Apical Periodontal Cysts
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Inflammatory Cells in Apical Periodontal Cysts
Inflammatory Cells in Apical Periodontal Cysts
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Fluid Composition of Apical Periodontal Cysts
Fluid Composition of Apical Periodontal Cysts
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Histological Features of Apical Periodontal Cysts
Histological Features of Apical Periodontal Cysts
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Lateral Periodontal Cyst
Lateral Periodontal Cyst
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Residual Cysts
Residual Cysts
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Dentigerous Cyst
Dentigerous Cyst
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Odontogenic Keratocyst (Primordial Cyst)
Odontogenic Keratocyst (Primordial Cyst)
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Eruption Cyst
Eruption Cyst
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Inflammatory Dental Follicle Cyst
Inflammatory Dental Follicle Cyst
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Ameloblastoma
Ameloblastoma
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Adenomatoid Odontogenic Tumor
Adenomatoid Odontogenic Tumor
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Ameloblastic Fibroma
Ameloblastic Fibroma
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Static Bone Cyst
Static Bone Cyst
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Dermoid Cyst
Dermoid Cyst
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Epidermoid Cyst
Epidermoid Cyst
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Developmental Mandibular Salivary Gland Depression
Developmental Mandibular Salivary Gland Depression
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Sialogram
Sialogram
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Curettage
Curettage
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Excision
Excision
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Multinucleated Giant Cells
Multinucleated Giant Cells
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Thyroglossal Tract Cyst
Thyroglossal Tract Cyst
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Branchial Cleft Cyst (Benign Cervical Lymphoepithelial Cyst)
Branchial Cleft Cyst (Benign Cervical Lymphoepithelial Cyst)
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What causes a thyroglossal tract cyst?
What causes a thyroglossal tract cyst?
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What causes a branchial cleft cyst?
What causes a branchial cleft cyst?
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What is the key difference in location between thyroglossal tract cysts and branchial cleft cysts?
What is the key difference in location between thyroglossal tract cysts and branchial cleft cysts?
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What is the difference in texture between thyroglossal tract cysts and branchial cleft cysts?
What is the difference in texture between thyroglossal tract cysts and branchial cleft cysts?
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What is the typical treatment for both thyroglossal tract cysts and branchial cleft cysts?
What is the typical treatment for both thyroglossal tract cysts and branchial cleft cysts?
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What is the general nature of thyroglossal tract cysts and branchial cleft cysts?
What is the general nature of thyroglossal tract cysts and branchial cleft cysts?
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What is a mucous extravasation cyst?
What is a mucous extravasation cyst?
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How does a mucous extravasation cyst form?
How does a mucous extravasation cyst form?
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Where are mucoceles found?
Where are mucoceles found?
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What is a ranula?
What is a ranula?
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What are the clinical features of a mucocele?
What are the clinical features of a mucocele?
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Cyst Enlargement
Cyst Enlargement
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Osmotic Pressure in Cyst Growth
Osmotic Pressure in Cyst Growth
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Epithelial Lining's Role
Epithelial Lining's Role
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Radiolucency on X-ray
Radiolucency on X-ray
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Cyst Infection
Cyst Infection
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Cyst Lining Variations
Cyst Lining Variations
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Epithelial Hyperplasia
Epithelial Hyperplasia
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Epithelial Lining Changes
Epithelial Lining Changes
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Connective Tissue Lining
Connective Tissue Lining
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Inflammatory Cells
Inflammatory Cells
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Fluid Composition
Fluid Composition
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Histological Features
Histological Features
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Mucous extravasation cyst
Mucous extravasation cyst
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Ranula
Ranula
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Mucocele formation
Mucocele formation
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Clinical features of a mucocele
Clinical features of a mucocele
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Treatment for a mucocele
Treatment for a mucocele
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Dentigerous Cyst Enlargement
Dentigerous Cyst Enlargement
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Central Dentigerous Cyst
Central Dentigerous Cyst
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Lateral Dentigerous Cyst
Lateral Dentigerous Cyst
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Cystic Fluid Accumulation
Cystic Fluid Accumulation
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Radiolucent Area on X-ray
Radiolucent Area on X-ray
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Clinical Features of Infection
Clinical Features of Infection
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Developmental Gingival Cyst of Adulthood
Developmental Gingival Cyst of Adulthood
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Gingival Cyst of the Newborn (Bohn's Nodules)
Gingival Cyst of the Newborn (Bohn's Nodules)
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Locations of Lateral Periodontal Cyst
Locations of Lateral Periodontal Cyst
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Symptoms of Lateral Periodontal Cyst
Symptoms of Lateral Periodontal Cyst
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Radiographic Features of Lateral Periodontal Cyst
Radiographic Features of Lateral Periodontal Cyst
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Appearance of Developmental Gingival Cyst of Adulthood
Appearance of Developmental Gingival Cyst of Adulthood
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Radiographic Features of Developmental Gingival Cyst
Radiographic Features of Developmental Gingival Cyst
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What is a Dentigerous Cyst?
What is a Dentigerous Cyst?
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What is an Odontogenic Keratocyst (Primordial Cyst)?
What is an Odontogenic Keratocyst (Primordial Cyst)?
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What is an Eruption Cyst?
What is an Eruption Cyst?
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What are the demographics of an Odontogenic Keratocyst?
What are the demographics of an Odontogenic Keratocyst?
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What is the common location for an Odontogenic Keratocyst?
What is the common location for an Odontogenic Keratocyst?
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What are the symptoms of an infected Odontogenic Keratocyst?
What are the symptoms of an infected Odontogenic Keratocyst?
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How does an Odontogenic Keratocyst appear on X-rays?
How does an Odontogenic Keratocyst appear on X-rays?
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What is the content of an Odontogenic Keratocyst?
What is the content of an Odontogenic Keratocyst?
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What is an Apical Periodontal Cyst?
What is an Apical Periodontal Cyst?
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How does an Apical Periodontal Cyst enlarge?
How does an Apical Periodontal Cyst enlarge?
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What causes the increased osmotic pressure in cyst growth?
What causes the increased osmotic pressure in cyst growth?
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What is the role of the epithelial lining in cyst enlargement?
What is the role of the epithelial lining in cyst enlargement?
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What is radiolucency on an X-ray?
What is radiolucency on an X-ray?
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What is cyst infection, and how does it appear on X-rays?
What is cyst infection, and how does it appear on X-rays?
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What are the variations in the cyst lining?
What are the variations in the cyst lining?
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What is epithelial hyperplasia?
What is epithelial hyperplasia?
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Dentigerous Cyst Origin
Dentigerous Cyst Origin
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Dentigerous Cyst Demographics
Dentigerous Cyst Demographics
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Dentigerous Cyst Symptoms
Dentigerous Cyst Symptoms
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Dentigerous Cyst on X-ray
Dentigerous Cyst on X-ray
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Dentigerous Cyst Lining
Dentigerous Cyst Lining
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Dentigerous Cyst Connective Tissue
Dentigerous Cyst Connective Tissue
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Dentigerous Cyst Attachment
Dentigerous Cyst Attachment
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Globulomaxillary Cyst
Globulomaxillary Cyst
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Nasolabial Cyst
Nasolabial Cyst
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Median Palatal Cyst
Median Palatal Cyst
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Median Mandibular Cyst
Median Mandibular Cyst
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Traumatic Bone Cyst
Traumatic Bone Cyst
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Viscous Fluid Content
Viscous Fluid Content
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Cyst of the Palatine Papilla
Cyst of the Palatine Papilla
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Fissural Cysts (Inclusion Cysts)
Fissural Cysts (Inclusion Cysts)
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What is an aneurysmal bone cyst?
What is an aneurysmal bone cyst?
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How does an aneurysmal bone cyst enlarge?
How does an aneurysmal bone cyst enlarge?
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Where is an aneurysmal bone cyst typically found?
Where is an aneurysmal bone cyst typically found?
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What are the clinical features of an aneurysmal bone cyst?
What are the clinical features of an aneurysmal bone cyst?
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What is the possible cause of a solitary bone cyst?
What is the possible cause of a solitary bone cyst?
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Where and in whom are solitary bone cysts typically found?
Where and in whom are solitary bone cysts typically found?
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What are the common features of a solitary bone cyst?
What are the common features of a solitary bone cyst?
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How are solitary bone cysts treated?
How are solitary bone cysts treated?
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Branchial Cleft Cyst
Branchial Cleft Cyst
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Thyroid Gland Descent
Thyroid Gland Descent
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Branchial Grooves
Branchial Grooves
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Location of Neck Cysts
Location of Neck Cysts
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Texture of Neck Cysts
Texture of Neck Cysts
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Treatment for Neck Cysts
Treatment for Neck Cysts
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Nature of Neck Cysts
Nature of Neck Cysts
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Odontogenic Keratocyst Demographics
Odontogenic Keratocyst Demographics
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Odontogenic Keratocyst Symptoms
Odontogenic Keratocyst Symptoms
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Odontogenic Keratocyst Appearance on X-ray
Odontogenic Keratocyst Appearance on X-ray
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Odontogenic Keratocyst Content
Odontogenic Keratocyst Content
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What are Apical Periodontal Cysts?
What are Apical Periodontal Cysts?
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How do apical periodontal cysts form?
How do apical periodontal cysts form?
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What is the radiographic appearance of apical periodontal cysts?
What is the radiographic appearance of apical periodontal cysts?
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How does the epithelial lining of an apical periodontal cyst change?
How does the epithelial lining of an apical periodontal cyst change?
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What is the composition of the fluid inside apical periodontal cysts?
What is the composition of the fluid inside apical periodontal cysts?
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What are some features of the connective tissue surrounding apical periodontal cysts?
What are some features of the connective tissue surrounding apical periodontal cysts?
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How do apical periodontal cysts enlarge?
How do apical periodontal cysts enlarge?
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How are apical periodontal cysts treated?
How are apical periodontal cysts treated?
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Odontogenic Keratocyst
Odontogenic Keratocyst
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How do Apical periodontal cysts grow?
How do Apical periodontal cysts grow?
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What are the defining characteristics of a dentigerous cyst?
What are the defining characteristics of a dentigerous cyst?
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What is a Static Bone Cyst?
What is a Static Bone Cyst?
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What is a Developmental Mandibular Salivary Gland Depression?
What is a Developmental Mandibular Salivary Gland Depression?
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What is a Dermoid Cyst?
What is a Dermoid Cyst?
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What is an Epidermoid Cyst?
What is an Epidermoid Cyst?
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What is a Sialogram?
What is a Sialogram?
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What is Curettage?
What is Curettage?
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What is Excision?
What is Excision?
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What are Multinucleated Giant Cells?
What are Multinucleated Giant Cells?
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What is a Globulomaxillary Cyst?
What is a Globulomaxillary Cyst?
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What is a Nasolabial Cyst?
What is a Nasolabial Cyst?
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What is a Median Palatal Cyst?
What is a Median Palatal Cyst?
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What is a Traumatic Bone Cyst?
What is a Traumatic Bone Cyst?
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What is an Odontogenic Keratocyst?
What is an Odontogenic Keratocyst?
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What is a Developmental Gingival Cyst of Adulthood?
What is a Developmental Gingival Cyst of Adulthood?
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What are Gingival Cysts of the Newborn?
What are Gingival Cysts of the Newborn?
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What is a Lateral Periodontal Cyst?
What is a Lateral Periodontal Cyst?
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What are the epithelial lining changes in a mature cyst?
What are the epithelial lining changes in a mature cyst?
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What are some histological features of Apical Periodontal Cysts?
What are some histological features of Apical Periodontal Cysts?
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What are the clinical features of a Dentigerous Cyst?
What are the clinical features of a Dentigerous Cyst?
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How does a Dentigerous Cyst appear on X-ray?
How does a Dentigerous Cyst appear on X-ray?
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Describe the lining of a Dentigerous Cyst.
Describe the lining of a Dentigerous Cyst.
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What is the characteristic of the connective tissue surrounding a Dentigerous Cyst?
What is the characteristic of the connective tissue surrounding a Dentigerous Cyst?
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Where does a Dentigerous Cyst attach to the tooth?
Where does a Dentigerous Cyst attach to the tooth?
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What are the demographics and common locations of a Dentigerous Cyst?
What are the demographics and common locations of a Dentigerous Cyst?
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List the symptoms of a Dentigerous Cyst.
List the symptoms of a Dentigerous Cyst.
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How does a Dentigerous Cyst look on an X-ray?
How does a Dentigerous Cyst look on an X-ray?
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Necrosis in Apical Periodontal Cyst
Necrosis in Apical Periodontal Cyst
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Origin of Apical Periodontal Cyst
Origin of Apical Periodontal Cyst
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Mechanism of Cyst Enlargement
Mechanism of Cyst Enlargement
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Epithelium's role in cyst enlargement
Epithelium's role in cyst enlargement
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Variations in Cyst Lining
Variations in Cyst Lining
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What happens to the epithelium in a newly formed cyst?
What happens to the epithelium in a newly formed cyst?
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How does the epithelial lining change in a fully formed cyst?
How does the epithelial lining change in a fully formed cyst?
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What components make up the connective tissue lining of an apical periodontal cyst?
What components make up the connective tissue lining of an apical periodontal cyst?
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What is the composition of the fluid inside an apical periodontal cyst?
What is the composition of the fluid inside an apical periodontal cyst?
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What are some other histological features found in apical periodontal cysts?
What are some other histological features found in apical periodontal cysts?
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Where do lateral periodontal cysts form, and what usually triggers them?
Where do lateral periodontal cysts form, and what usually triggers them?
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What is a residual cyst?
What is a residual cyst?
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What are the different treatment options for apical periodontal cysts, and which one is used depending on the cyst's size?
What are the different treatment options for apical periodontal cysts, and which one is used depending on the cyst's size?
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Dentigerous Cyst: Location and Effects
Dentigerous Cyst: Location and Effects
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Dentigerous Cyst: Surrounding Tissue
Dentigerous Cyst: Surrounding Tissue
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Dentigerous Cyst Treatment
Dentigerous Cyst Treatment
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Odontogenic Keratocyst Location
Odontogenic Keratocyst Location
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Dermoid and Epidermoid Cysts
Dermoid and Epidermoid Cysts
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Static Bone Cyst on Radiographs
Static Bone Cyst on Radiographs
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Sialogram for Diagnosis
Sialogram for Diagnosis
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Histopathologic Features of a Static Bone Cyst
Histopathologic Features of a Static Bone Cyst
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Static Bone Cyst Symptoms
Static Bone Cyst Symptoms
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Static Bone Cyst Treatment
Static Bone Cyst Treatment
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Dermoid Cyst Location and Appearance
Dermoid Cyst Location and Appearance
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What is a thyroglossal tract cyst?
What is a thyroglossal tract cyst?
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What is a branchial cleft cyst?
What is a branchial cleft cyst?
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Where do thyroglossal tract cysts and branchial cleft cysts form?
Where do thyroglossal tract cysts and branchial cleft cysts form?
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How do thyroglossal tract cysts and branchial cleft cysts feel?
How do thyroglossal tract cysts and branchial cleft cysts feel?
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What is the common treatment for thyroglossal tract cysts and branchial cleft cysts?
What is the common treatment for thyroglossal tract cysts and branchial cleft cysts?
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Why is treatment important for thyroglossal tract cysts and branchial cleft cysts?
Why is treatment important for thyroglossal tract cysts and branchial cleft cysts?
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Study Notes
Cysts of the Oral and Paraoral Regions
- A cyst is a pathological cavity lined by epithelium, containing fluid or semi-fluid material. Pseudocysts are not lined by epithelium.
- Odontogenic cysts develop from odontogenic epithelial cells.
- Periodontal cysts:
- Inflammatory: Apical, lateral, or residual. These cysts result from inflammatory hyperplasia of epithelial rests of Malassez in the periodontal ligament, following pulp death.
- Developmental: Lateral developmental cysts, adult gingival cysts, neonatal gingival cysts (Bohn's nodules). These develop from developmental processes.
- Dentigerous cyst: A cyst around unerupted teeth. Types include central, lateral, and circumferential.
- Primordial cyst: Another type of odontogenic cyst, also called the odontogenic keratocyst, most commonly characterized by parakeratotic or orthokeratotic layers and high recurrence rates.
- Periodontal cysts:
- Non-Odontogenic cysts originate from sources other than odontogenic epithelial cells.
- Nasopalatine cysts: Incisive canal cyst, palatine papilla cyst. These are less than 1% of oral cysts.
- Fissural cysts: Globulomaxillary, nasolabial, median (maxillary and mandibular), median palatal, and median mandibular cysts, stemming from epithelial entrapment.
- Pseudocysts: (traumatic bone cyst, aneurysmal, and static bone cysts. These are not lined by epithelium, and are bony cavities.)
- Soft tissue cysts: Dermoid, epidermoid, thyroglossal tract cysts, benign lymphoepithelial (branchial-cleft), mucous retention, mucous extravasation cysts, ranula.
Epithelium of Odontogenic Cysts
- The epithelium associated with odontogenic cysts derives from the enamel organ, reduced enamel epithelium, epithelial rests of Malassez, and epithelial rests of Serres.
Inflammatory Periodontal Cysts
- These cysts account for 65% of all cysts.
- They arise from periapical granuloma caused by inflammatory hyperplasia.
- The epithelial mass grows, central cells lose nutrition and degenerate, forming a cystic cavity.
- Apical, periapical (radicular), or lateral positions are possible. Residual cysts occur when tooth extraction doesn't remove the cyst completely.
Mechanism of Enlargement
- Breakdown of complex proteins within the cyst lumen increases osmotic pressure.
- Fluid transport across the semipermeable epithelial lining leads to cyst enlargement.
Clinical Features of Periodontal Cysts
- Age: Adults, typically between the third and sixth decades, slightly more common in men; can also affect younger people.
- Sex: Slightly more common in men; can also affect younger people.
- Location: Often in the anterior maxilla; can be along lateral and other areas.
- Often asymptomatic, and discovered through routine x-rays. Rapid swelling, pain can occur with infection. Resorption of bone to an eggshell-like texture is possible.
Microscopic Variations in Cyst Walls
- Epithelial lining: Initially stratified squamous epithelium, but potentially respiratory or pseudostratified ciliated columnar epithelium.
- Connective tissue lining: Contains inflammatory cells and foci of dystrophic calcification. Possibly cholesterol clefts, degenerating plasma cells (Russel bodies), eosinophilic or hyaline bodies (Rushton bodies), and multinucleated giant cells and lipid-filled macrophages (foam cells).
Differential Diagnosis
- Periapical granuloma: Small radiolucency; distinguishable from small periapical cysts by radiographic features.
- Periapical scar: Previously treated periapical pathology.
- Periapical cemental dysplasia: Differentiated by appearance and location.
Other Types of Cysts (Pages 2-19)
- Eruption cyst: Characterized by soft, rounded swellings with a deep blue appearance due to blood presence, erupting teeth; resolves spontaneously.
- Primordial cyst: Least common type of odontogenic cyst. Often asymptomatic with a small, radiolucent, well-defined area and high recurrence risk. Can be parakeratotic or orthokeratotic in composition.
- Nasopalatine duct cyst: Asymptomatic cyst in the mid-palatal area; less than 1% of all oral cysts.
- Nasolabial cyst: Swelling not in the oral cavity.
- Median palatal cysts: Palatal area, possibly asymptomatic.
- Median mandibular cysts: Mandibular area, possibly asymptomatic.
- Soft tissue cysts: Arise from epithelium entrapped during developmental processes and may include dermoid, epidermoid, ranula, thyroglossal tract cysts, and benign lymphoepithelial cysts.
- Pseudocysts: are not lined by epithelium, including inflammatory lateral periodontal cysts, which are less common; they occur on the side of the root of a tooth caused by an opening in the lateral root. Also, aneurysmal, and static bone cysts.
- (Developmental and Inflammatory Periodontal Cysts): These cysts have additional variations, such as those with different etiologies and locations. This includes the developmental lateral cyst, characterized by non-inflammatory developmental cysts adjacent or lateral to tooth roots, and residual cysts, which persist despite tooth extraction.
- Mucous extravasation cyst: A soft tissue swelling often painless, in mouth areas; may have a translucent appearance.
- Static bone cyst: Non-epithelial cyst; possibly developmental.
Treatment
- Surgical excision is often recommended for cysts.
- Marsupialization is for very large cysts to prevent issues.
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Test your knowledge on the pathology of various dental cysts, focusing on apical periodontal cysts, radicular cysts, and mucous extravasation cysts. This quiz covers key histopathologic features, radiographic signs, and clinical characteristics relevant to dental professionals. Dive into the nature of these cysts and their implications in dentistry.
