Podcast
Questions and Answers
Which of the following is a key characteristic that distinguishes odontogenic fibroma from odontogenic myxoma?
Which of the following is a key characteristic that distinguishes odontogenic fibroma from odontogenic myxoma?
- Odontogenic fibroma typically presents as a multilocular radiolucency, while odontogenic myxoma presents as a unilocular radiolucency.
- Odontogenic fibroma is composed primarily of fibrous tissue, while odontogenic myxoma is characterized by myxoid connective tissue. (correct)
- Odontogenic fibroma is more common in young adults, while odontogenic myxoma is more common in older adults.
- Odontogenic fibroma requires local resection with surrounding bone, while odontogenic myxoma can be treated with simple enucleation.
Which of the following radiographic features is most indicative of odontogenic myxoma?
Which of the following radiographic features is most indicative of odontogenic myxoma?
- Multilocular radiolucency with fine, wispy radiopaque internal septa. (correct)
- Well-circumscribed unilocular radiolucency in the premolar region.
- Small, round radiolucency with displacement of adjacent teeth.
- Smooth, well-defined corticated outline with root resorption.
What is the most appropriate treatment approach for odontogenic fibroma?
What is the most appropriate treatment approach for odontogenic fibroma?
- Curettage of the lesion and surrounding bone.
- Enucleation, as it is typically a well-circumscribed lesion. (correct)
- Radiation therapy to prevent recurrence.
- Local resection with wide margins due to its aggressive nature.
Which histological feature is most characteristic of odontogenic myxoma?
Which histological feature is most characteristic of odontogenic myxoma?
What clinical sign might be observed in a patient with odontogenic fibroma?
What clinical sign might be observed in a patient with odontogenic fibroma?
Which of the following characteristics is associated with a higher recurrence rate?
Which of the following characteristics is associated with a higher recurrence rate?
Root resorption is a potential effect on adjacent teeth for which of the following lesions?
Root resorption is a potential effect on adjacent teeth for which of the following lesions?
Which tissue type is characteristic of the ground substance in myxoid connective tissue, a component sometimes observed in cementoblastoma?
Which tissue type is characteristic of the ground substance in myxoid connective tissue, a component sometimes observed in cementoblastoma?
A patient presents with a painful bony expansion associated with their lower first molar. Radiographic examination reveals a radiopaque mass with a thin radiolucent rim. Which of the following is the MOST likely diagnosis?
A patient presents with a painful bony expansion associated with their lower first molar. Radiographic examination reveals a radiopaque mass with a thin radiolucent rim. Which of the following is the MOST likely diagnosis?
What is the primary component of odontogenic fibroma?
What is the primary component of odontogenic fibroma?
Histopathological examination of a suspected cementoblastoma lesion reveals trabeculae of bone-like material. What other microscopic feature would MOST strongly support this diagnosis?
Histopathological examination of a suspected cementoblastoma lesion reveals trabeculae of bone-like material. What other microscopic feature would MOST strongly support this diagnosis?
Which radiographic feature is LEAST likely to be associated with cementoblastoma?
Which radiographic feature is LEAST likely to be associated with cementoblastoma?
What is the typical treatment approach for a cementoblastoma, and what is the expected prognosis?
What is the typical treatment approach for a cementoblastoma, and what is the expected prognosis?
Flashcards
Odontogenic Fibroma
Odontogenic Fibroma
Rare benign neoplasm of fibroblasts causing tissue growth.
Clinical Characteristics of Odontogenic Fibroma
Clinical Characteristics of Odontogenic Fibroma
Present in wider age range, mainly in mandible, often causing tooth displacement.
Radiographic Features of Odontogenic Fibroma
Radiographic Features of Odontogenic Fibroma
Well-circumscribed, unilocular radiolucency usually 2-4 cm in size.
Enucleation in Odontogenic Fibroma
Enucleation in Odontogenic Fibroma
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Odontogenic Myxoma
Odontogenic Myxoma
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Clinical Characteristics of Odontogenic Myxoma
Clinical Characteristics of Odontogenic Myxoma
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Radiographic Features of Odontogenic Myxoma
Radiographic Features of Odontogenic Myxoma
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Histopathology of Odontogenic Myxoma
Histopathology of Odontogenic Myxoma
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Myxoid Connective Tissue
Myxoid Connective Tissue
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Cementoblastoma
Cementoblastoma
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Radiographic Features of Cementoblastoma
Radiographic Features of Cementoblastoma
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Histopathology of Cementoblastoma
Histopathology of Cementoblastoma
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Clinical Characteristics of Cementoblastoma
Clinical Characteristics of Cementoblastoma
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Study Notes
Odontogenic Fibroma
- Nature: Rare, benign tumor of fibroblasts.
- Location: Primarily mandible, premolar area.
- Appearance (Radiographic): Well-circumscribed, unilocular radiolucency.
- Size: Typically 2-4 cm.
- Clinical Signs: Possible tooth displacement/root resorption, swelling.
- Treatment: Enucleation (surgical removal).
- Features (Histological): Primarily fibrous tissue, few epithelial cells.
Odontogenic Myxoma
- Nature: Benign tumor of fibroblasts producing ground substance.
- Composition: Myxoid connective tissue (little collagen, much ground substance).
- Appearance (Radiographic): Multilocular radiolucency, fine internal septa.
- Location: Posterior mandible/maxilla; sometimes large size.
- Clinical Signs: Gelatinous texture, painless swelling.
- Treatment: Local resection with surrounding bone.
- Recurrence: High risk.
- Histological Features: Cortical layer, criss-crossing septa, myxoid tissue, minimal fibroblasts.
Cementoblastoma
- Nature: Benign tumor of cementoblasts (cementum-forming cells).
- Location: Typically associated with lower first permanent molars.
- Appearance (Radiographic): Well-defined, radiopaque center with radiolucent periphery (like a golf ball).
- Size: Usually 2-3 cm
- Clinical Signs: Painful bony swelling, tooth vitality is often preserved, root resorption common.
- Treatment: Excision with tooth extraction (generally curative).
- Histological Features: Trabeculae of bone-like material, possible dense mineralization, thick fibrous zone, outward radial cementum matrix, embedded cementoblasts, possible bone turnover.
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