Adenomatoid Odontogenic Tumor

What percentage of Adenomatoid Odontogenic Tumors are intraosseous?

80%
85%
95% (correct)
90%

What is the characteristic radiographic feature of Adenomatoid Odontogenic Tumors?

Multilocular radiolucency with scattered radiopacities
Mixed radiolucent and radiopaque lesion
Ill-defined radiolucency with coarse radiopacities
Well-defined unilocular radiolucency with fine radiopacities (correct)

What type of tumor is composed of odontogenic ectomesenchyme only?

Epithelial tumor
Mesenchymal tumor (correct)
Complex tumor
Mixed tumor

What is the characteristic histopathological feature of Adenomatoid Odontogenic Tumors?

Duct-like structures with columnar or cuboidal epithelial cells (A) Signup and view all the answers

What is the most common type of benign epithelial odontogenic tumor?

Ameloblastoma (D) Signup and view all the answers

What is the histopathological composition of an odontoma?

Composed of both odontogenic epithelium and ectomesenchyme (D) Signup and view all the answers

Which type of odontogenic tumor is composed of odontogenic ectomesenchyme only?

Mesenchymal tumor (C) Signup and view all the answers

What is the classification of an ameloblastoma in terms of odontogenic tumor composition?

Epithelial (D) Signup and view all the answers

What is the most common type of benign odontogenic tumor?

Ameloblastoma (B) Signup and view all the answers

Which of the following is NOT a characteristic of a benign odontogenic tumor?

Malignant behavior (C) Signup and view all the answers

What is the characteristic radiographic feature of an ameloblastic fibroma?

Well-defined unilocular or multilocular radiolucency (D) Signup and view all the answers

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 (A) Signup and view all the answers

What is the treatment approach for an ameloblastic fibroma?

Conservative removal of the lesion (A) Signup and view all the answers

What is the characteristic feature of odontomas?

Mixed epithelial and mesenchymal tumor-like malformations (B) Signup and view all the answers

What is the major concern in patients with Gardner's syndrome?

High risk of transformation of colorectal polyps into adenocarcinoma (C) Signup and view all the answers

What is the expected outcome for a patient who has undergone simple local excision for odontoma treatment?

Excellent prognosis (A) Signup and view all the answers

What is a key feature that distinguishes mesenchymal tumors from epithelial tumors?

Presence of odontogenic ectomesenchyme (A) Signup and view all the answers

How would you classify an ameloblastoma in terms of odontogenic tumor composition?

Epithelial tumor (B) Signup and view all the answers

What is an important radiographic feature of Adenomatoid Odontogenic Tumors?

Mixed radiolucent and radiopaque lesion (A) Signup and view all the answers

What is the primary focus of the provided reading material?

Odontogenic tumors and allied lesions (C) Signup and view all the answers

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 (C) Signup and view all the answers

What is the characteristic radiographic feature of odontomas?

A collection of tooth-like structures (A) Signup and view all the answers

What is the characteristic histopathological feature of complex odontomas?

Mature tubular dentin that encloses clefts or hollow circular structures (D) Signup and view all the answers

What is the primary anatomic location of compound odontomas?

Anterior maxilla (A) Signup and view all the answers

What is the characteristic macroscopic feature of complex odontomas?

A white, bony, hard mass (A) Signup and view all the answers

What is the characteristic macroscopic feature of a cementoblastoma?

A calcified mass adherent to the tooth root (B) Signup and view all the answers

Which type of odontogenic tumor is composed of both odontogenic epithelium and ectomesenchyme?

Mixed (C) Signup and view all the answers

What is the treatment for a cementoblastoma?

Surgical extraction of the tooth together with the attached calcified mass (B) Signup and view all the answers

What is the characteristic radiographic feature of a cementoblastoma?

A radiopaque mass fused to the root and surrounded by a thin radiolucent rim (B) Signup and view all the answers

What is the characteristic histopathological feature of a cementoblastoma?

Calcified cementum-like material with reversal lines (A) Signup and view all the answers

What is the primary component of the amyloid protein secreted by the Calcifying epithelial odontogenic tumor?

Eosinophilic hyaline material (B) Signup and view all the answers

Which type of tumor is characterized by a slow growth rate and bony expansion?

Calcifying epithelial odontogenic tumor (A) Signup and view all the answers

What is the characteristic nuclear feature of the neoplastic cells in the Calcifying epithelial odontogenic tumor?

Pleomorphic (C) Signup and view all the answers

What is the characteristic radiographic feature of the Calcifying epithelial odontogenic tumor?

Circumscribed radiolucent lesion (D) Signup and view all the answers

Which type of tumor is composed of both odontogenic epithelium and ectomesenchyme?

Adenomatoid odontogenic tumor (A) Signup and view all the answers

What is the characteristic histopathological feature of the epithelial cells in the Calcifying epithelial odontogenic tumor?

Prominent intercellular bridges (D) Signup and view all the answers

What is the location of the Calcifying epithelial odontogenic tumor in most cases?

Posterior mandible (D) Signup and view all the answers

What is the association between the Calcifying epithelial odontogenic tumor and an impacted tooth?

50-60% of cases (C) Signup and view all the answers

What is the characteristic of the radiolucency in the Calcifying epithelial odontogenic tumor?

Well-defined (B) Signup and view all the answers

What is the primary component of the Calcifying epithelial odontogenic tumor?

Odontogenic epithelium (A) Signup and view all the answers