70 Questions
What percentage of Adenomatoid odontogenic tumor cases are intraosseous?
95%
What is the common location of Adenomatoid odontogenic tumor?
Anterior part of maxilla
What is the characteristic radiographic feature of Adenomatoid odontogenic tumor?
Well defined unilocular radiolucency with fine radiopacities
What is the characteristic macroscopic feature of Adenomatoid odontogenic tumor?
Smooth rounded symmetrical masses
What type of tissue does adenomatoid odontogenic tumor consist of?
Both odontogenic epithelium and ectomesenchyme
What is the characteristic histopathological feature of Adenomatoid odontogenic tumor?
Duct-like structures with columnar or cuboidal epithelial cells
What is the composition of epithelial odontogenic tumors?
Odontogenic epithelium only
Where do calcifying epithelial odontogenic tumors most commonly occur?
In the posterior area of the mandible
What is a characteristic radiographic feature of calcifying epithelial odontogenic tumors?
Combined radiolucent and radiopaque appearance
What is a distinct feature of the epithelial cells in calcifying epithelial odontogenic tumors?
Distinct outline with prominent intercellular bridges
What is the unique protein secreted by neoplastic cells in calcifying epithelial odontogenic tumors?
Odontogenic amyloid protein
What is the characteristic calcification pattern seen in calcifying epithelial odontogenic tumors?
Liesegang ring calcifications
What is the characteristic radiographic feature of a cementoblastoma?
A radiopaque mass fused to the root and surrounded by a thin radiolucent rim
What is the treatment for a cementoblastoma?
Surgical extraction of the tooth together with the attached calcified mass
What is the most common site for ameloblastic fibroma?
Posterior mandible
What type of tumor is composed of both odontogenic epithelium and ectomesenchyme?
Mixed
What is the most common type of mixed odontogenic tumor?
Odontoma
What is the characteristic histopathological feature of a cementoblastoma?
Calcified cementum like material with reversal lines
What is the treatment for odontoma?
Simple local excision
What is the aim of this lecture?
To detail the principle radiological and histopathological features of non-ameloblastoma odontogenic tumours, odontomes and cemental disorders
What should students review before this lecture?
Relevant teaching from first year
What is the title of the textbook recommended for reading?
All of the above
What is the page range recommended for reading in Robinson M et al. Soames’ and Southam’s Oral Pathology?
149-159
Who is the author of Odell E.W. Cawson’s Essentials of Oral Pathology and Oral Medicine?
Odell E.W.
What is the most common type of odontogenic tumors?
Compound odontoma
What is the characteristic radiographic feature of compound odontoma?
A collection of tooth-like structures
Where do compound odontomas mainly occur?
Anterior maxilla
What is the characteristic histopathological feature of complex odontoma?
Mature tubular dentin that encloses clefts or hollow circular structures
What is the characteristic macroscopic feature of complex odontoma?
A white bony hard mass
What is the common association of odontomas?
Unerupted teeth
What is the primary goal of this lecture regarding odontogenic tumours?
To detail the principle radiological and histopathological features
Which of the following conditions may occasionally occur in addition to odontogenic tumours?
Cemento-ossifying disorders
What is the typical treatment for odontomas?
Simple local excision
What is the recommended reading material for students to review before this lecture?
Relevant sections of Robinson M et al. and Odell E.W.
What is the primary focus of the textbook by Reichart PA and Philipsen HP?
Odontogenic tumours and allied lesions
What is the treatment for odontogenic myxoma?
Complete excision with safety margin
What is a common clinical feature of odontogenic fibroma?
Asymptomatic
What is a characteristic radiographic feature of large odontogenic fibromas?
Multilocular radiolucency
What is a characteristic histopathological feature of odontogenic fibroma?
Inactive odontogenic epithelium
What is a common site for cementoblastoma?
Mandibular premolar-molar region
Which type of odontogenic tumor is composed of both odontogenic epithelium and ectomesenchyme?
Mixed odontogenic tumor
What is the characteristic radiographic feature of Cementoblastoma?
A radiopaque mass surrounded by a thin radiolucent rim
What is the treatment for a Cementoblastoma?
Surgical extraction of the tooth together with the attached calcified mass
What is the characteristic histopathological feature of a Cementoblastoma?
The presence of calcified cementum-like material with reversal lines
What is the common location of Ameloblastic fibroma?
Posterior mandible
What is the characteristic radiographic feature of Ameloblastic fibroma?
Well-defined unilocular or multilocular radiolucent lesion
What is the composition of Odontomas?
Mixed epithelial and mesenchymal tumor-like malformations
What is the treatment approach for Ameloblastic fibroma?
Conservative surgical removal
What is the characteristic histopathological feature of Ameloblastic fibroma?
Long, narrow cords or small discrete islands of odontogenic cells in a loose matrix
What is the association of Odontomas with other conditions?
Gardner's syndrome
What is the characteristic that distinguishes adenomatoid odontogenic tumor from calcifying epithelial odontogenic tumor?
Composition of both odontogenic epithelium and ectomesenchyme
Which of the following is a characteristic clinical feature of calcifying epithelial odontogenic tumor?
Slowly growing tumor ultimately producing bony expansion
What is the characteristic radiographic feature of calcifying epithelial odontogenic tumor?
Circumscribed unilocular or multilocular radiolucency
What is the characteristic histopathological feature of calcifying epithelial odontogenic tumor?
Discrete islands of neoplastic epithelial cells with prominent intercellular bridges
What is the prognosis of calcifying epithelial odontogenic tumor?
Good prognosis due to benign nature
What is the primary composition of mesenchymal odontogenic tumors?
Only odontogenic ectomesenchyme
What is a characteristic feature of mixed odontogenic tumors?
Composed of both odontogenic epithelium and ectomesenchyme
What is the most common type of benign odontogenic tumor?
Ameloblastoma
What is the primary classification of odontogenic tumors based on?
Histopathological features
What is the focus of this lecture regarding odontogenic tumors?
Histopathological features and implications
What is the classification of Adenomatoid odontogenic tumor?
Epithelial odontogenic tumor
What is the typical clinical feature of Adenomatoid odontogenic tumor?
Painless expansion of bone
What is the characteristic radiographic feature of Adenomatoid odontogenic tumor?
Well-defined unilocular radiolucency with fine radiopacities
What is the characteristic histopathological feature of Adenomatoid odontogenic tumor?
Duct-like structures with central space lined by layer of cuboidal epithelial cells
What is the prognosis of Adenomatoid odontogenic tumor?
Good
How does the treatment of Adenomatoid odontogenic tumor typically involve?
Enucleation and curettage
What is the characteristic macroscopic feature of Adenomatoid odontogenic tumor?
Smooth, rounded, symmetrical masses
What is the common association of Adenomatoid odontogenic tumor?
Impacted canine tooth
What is the growth potential of Adenomatoid odontogenic tumor?
Limited growth potential
What is the common location of Adenomatoid odontogenic tumor?
Anterior part of maxilla
This quiz covers the characteristics and features of odontogenic tumors, including adenomatoid odontogenic tumor and calcifying epithelial odontogenic tumor.
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