Adenomatoid Odontogenic Tumor
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Questions and Answers

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?

    <p>Duct-like structures with columnar or cuboidal epithelial cells</p> Signup and view all the answers

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

    <p>Ameloblastoma</p> Signup and view all the answers

    What is the histopathological composition of an odontoma?

    <p>Composed of both odontogenic epithelium and ectomesenchyme</p> Signup and view all the answers

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

    <p>Mesenchymal tumor</p> Signup and view all the answers

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

    <p>Epithelial</p> Signup and view all the answers

    What is the most common type of benign odontogenic tumor?

    <p>Ameloblastoma</p> Signup and view all the answers

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

    <p>Malignant behavior</p> Signup and view all the answers

    What is the characteristic radiographic feature of an ameloblastic fibroma?

    <p>Well-defined unilocular or multilocular radiolucency</p> Signup and view all the answers

    What is the histopathological characteristic of the epithelial portion of an ameloblastic fibroma?

    <p>Long, narrow cords or small islands of odontogenic cells in a loose matrix</p> Signup and view all the answers

    What is the treatment approach for an ameloblastic fibroma?

    <p>Conservative removal of the lesion</p> Signup and view all the answers

    What is the characteristic feature of odontomas?

    <p>Mixed epithelial and mesenchymal tumor-like malformations</p> Signup and view all the answers

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

    <p>High risk of transformation of colorectal polyps into adenocarcinoma</p> Signup and view all the answers

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

    <p>Excellent prognosis</p> Signup and view all the answers

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

    <p>Presence of odontogenic ectomesenchyme</p> Signup and view all the answers

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

    <p>Epithelial tumor</p> Signup and view all the answers

    What is an important radiographic feature of Adenomatoid Odontogenic Tumors?

    <p>Mixed radiolucent and radiopaque lesion</p> Signup and view all the answers

    What is the primary focus of the provided reading material?

    <p>Odontogenic tumors and allied lesions</p> Signup and view all the answers

    What is the primary difference between compound and complex odontomas?

    <p>Compound odontomas consist of multiple small tooth-like structures, while complex odontomas consist of a mass of enamel and dentin</p> Signup and view all the answers

    What is the characteristic radiographic feature of odontomas?

    <p>A collection of tooth-like structures</p> Signup and view all the answers

    What is the characteristic histopathological feature of complex odontomas?

    <p>Mature tubular dentin that encloses clefts or hollow circular structures</p> Signup and view all the answers

    What is the primary anatomic location of compound odontomas?

    <p>Anterior maxilla</p> Signup and view all the answers

    What is the characteristic macroscopic feature of complex odontomas?

    <p>A white, bony, hard mass</p> Signup and view all the answers

    What is the characteristic macroscopic feature of a cementoblastoma?

    <p>A calcified mass adherent to the tooth root</p> Signup and view all the answers

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

    <p>Mixed</p> Signup and view all the answers

    What is the treatment for a cementoblastoma?

    <p>Surgical extraction of the tooth together with the attached calcified mass</p> Signup and view all the answers

    What is the characteristic radiographic feature of a cementoblastoma?

    <p>A radiopaque mass fused to the root and surrounded by a thin radiolucent rim</p> Signup and view all the answers

    What is the characteristic histopathological feature of a cementoblastoma?

    <p>Calcified cementum-like material with reversal lines</p> Signup and view all the answers

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

    <p>Eosinophilic hyaline material</p> Signup and view all the answers

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

    <p>Calcifying epithelial odontogenic tumor</p> Signup and view all the answers

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

    <p>Pleomorphic</p> Signup and view all the answers

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

    <p>Circumscribed radiolucent lesion</p> Signup and view all the answers

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

    <p>Adenomatoid odontogenic tumor</p> Signup and view all the answers

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

    <p>Prominent intercellular bridges</p> Signup and view all the answers

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

    <p>Posterior mandible</p> Signup and view all the answers

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

    <p>50-60% of cases</p> Signup and view all the answers

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

    <p>Well-defined</p> Signup and view all the answers

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

    <p>Odontogenic epithelium</p> Signup and view all the answers

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