40 Questions
What percentage of Adenomatoid Odontogenic Tumors are intraosseous?
95%
What is the characteristic radiographic feature of Adenomatoid Odontogenic Tumors?
Well-defined unilocular radiolucency with fine radiopacities
What type of tumor is composed of odontogenic ectomesenchyme only?
Mesenchymal tumor
What is the characteristic histopathological feature of Adenomatoid Odontogenic Tumors?
Duct-like structures with columnar or cuboidal epithelial cells
What is the most common type of benign epithelial odontogenic tumor?
Ameloblastoma
What is the histopathological composition of an odontoma?
Composed of both odontogenic epithelium and ectomesenchyme
Which type of odontogenic tumor is composed of odontogenic ectomesenchyme only?
Mesenchymal tumor
What is the classification of an ameloblastoma in terms of odontogenic tumor composition?
Epithelial
What is the most common type of benign odontogenic tumor?
Ameloblastoma
Which of the following is NOT a characteristic of a benign odontogenic tumor?
Malignant behavior
What is the characteristic radiographic feature of an ameloblastic fibroma?
Well-defined unilocular or multilocular radiolucency
What is the histopathological characteristic of the epithelial portion of an ameloblastic fibroma?
Long, narrow cords or small islands of odontogenic cells in a loose matrix
What is the treatment approach for an ameloblastic fibroma?
Conservative removal of the lesion
What is the characteristic feature of odontomas?
Mixed epithelial and mesenchymal tumor-like malformations
What is the major concern in patients with Gardner's syndrome?
High risk of transformation of colorectal polyps into adenocarcinoma
What is the expected outcome for a patient who has undergone simple local excision for odontoma treatment?
Excellent prognosis
What is a key feature that distinguishes mesenchymal tumors from epithelial tumors?
Presence of odontogenic ectomesenchyme
How would you classify an ameloblastoma in terms of odontogenic tumor composition?
Epithelial tumor
What is an important radiographic feature of Adenomatoid Odontogenic Tumors?
Mixed radiolucent and radiopaque lesion
What is the primary focus of the provided reading material?
Odontogenic tumors and allied lesions
What is the primary difference between compound and complex odontomas?
Compound odontomas consist of multiple small tooth-like structures, while complex odontomas consist of a mass of enamel and dentin
What is the characteristic radiographic feature of odontomas?
A collection of tooth-like structures
What is the characteristic histopathological feature of complex odontomas?
Mature tubular dentin that encloses clefts or hollow circular structures
What is the primary anatomic location of compound odontomas?
Anterior maxilla
What is the characteristic macroscopic feature of complex odontomas?
A white, bony, hard mass
What is the characteristic macroscopic feature of a cementoblastoma?
A calcified mass adherent to the tooth root
Which type of odontogenic tumor is composed of both odontogenic epithelium and ectomesenchyme?
Mixed
What is the treatment for a cementoblastoma?
Surgical extraction of the tooth together with the attached calcified mass
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 characteristic histopathological feature of a cementoblastoma?
Calcified cementum-like material with reversal lines
What is the primary component of the amyloid protein secreted by the Calcifying epithelial odontogenic tumor?
Eosinophilic hyaline material
Which type of tumor is characterized by a slow growth rate and bony expansion?
Calcifying epithelial odontogenic tumor
What is the characteristic nuclear feature of the neoplastic cells in the Calcifying epithelial odontogenic tumor?
Pleomorphic
What is the characteristic radiographic feature of the Calcifying epithelial odontogenic tumor?
Circumscribed radiolucent lesion
Which type of tumor is composed of both odontogenic epithelium and ectomesenchyme?
Adenomatoid odontogenic tumor
What is the characteristic histopathological feature of the epithelial cells in the Calcifying epithelial odontogenic tumor?
Prominent intercellular bridges
What is the location of the Calcifying epithelial odontogenic tumor in most cases?
Posterior mandible
What is the association between the Calcifying epithelial odontogenic tumor and an impacted tooth?
50-60% of cases
What is the characteristic of the radiolucency in the Calcifying epithelial odontogenic tumor?
Well-defined
What is the primary component of the Calcifying epithelial odontogenic tumor?
Odontogenic epithelium
A benign epithelial odontogenic tumor that shows duct-like structures. It has limited growth potential and is usually asymptomatic. Radiographic features include well-defined unilocular radiolucency with fine radiopacities.
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