Maxillofacial Benign Tumors: Conventional Ameloblastoma
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Maxillofacial Benign Tumors: Conventional Ameloblastoma

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Questions and Answers

What is the key difference between intraosseous ameloblastoma and peripheral ameloblastoma?

  • Peripheral ameloblastoma is more common than intraosseous ameloblastoma
  • Peripheral ameloblastoma shows more aggressive clinical behavior
  • Peripheral ameloblastoma responds better to local surgical excision (correct)
  • Peripheral ameloblastoma is more likely to metastasize

    • What is the most common site of metastasis for metastasizing ameloblastoma?

  • Lung (correct)
  • Liver
  • Brain
  • Bone

    • What is the suggested mechanism for metastasis in metastasizing ameloblastoma?

  • Direct invasion from the primary tumor site
  • Hematogenous spread from the primary tumor
  • Implantation during surgical intervention (correct)
  • Lymphatic spread from the primary tumor

    • What is the defining feature of adenoid ameloblastoma?

    <p>It is the only new entity added in the odontogenic tumors</p> Signup and view all the answers

    What is the prognosis for patients with metastasizing ameloblastoma?

    <p>Good, as the metastases are histologically benign and can be treated with local excision</p> Signup and view all the answers

    Which of the following statements about the superficial alveolar bone in ameloblastoma is correct?

    <p>It becomes slightly eroded in some cases, but significant bone involvement does not occur</p> Signup and view all the answers

    What is a common way in which adenomatoid odontogenic tumors are discovered?

    <p>During a routine radiographic examination</p> Signup and view all the answers

    How do larger adenomatoid odontogenic tumors typically affect the bone?

    <p>Cause a painless expansion</p> Signup and view all the answers

    What percentage of cases does the adenomatoid odontogenic tumor appear as a circumscribed, unilocular radiolucency involving the crown of an unerupted tooth?

    <p>75%</p> Signup and view all the answers

    What type of calcifications are often found in adenomatoid odontogenic tumors?

    <p>Snowflake calcifications</p> Signup and view all the answers

    What is the typical behavior of adenomatoid odontogenic tumors in terms of recurrence?

    <p>Rare recurrence</p> Signup and view all the answers

    Where does the squamous odontogenic tumor mainly affect in the jaw?

    <p>Alveolar process near root area</p> Signup and view all the answers

    Which of the following is NOT a common histopathologic pattern of conventional/solid or multicystic intraosseous ameloblastoma?

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

    Which of the following lesions may mimic ameloblastoma radiologically?

    <p>All of the above</p> Signup and view all the answers

    What is a common radiographic feature of conventional/solid or multicystic intraosseous ameloblastoma?

    <p>All of the above</p> Signup and view all the answers

    Which of the following is NOT mentioned as a less common histopathologic pattern of conventional/solid or multicystic intraosseous ameloblastoma?

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

    What type of radiographic appearance do solid ameloblastomas often exhibit?

    <p>Unilocular radiolucent defects</p> Signup and view all the answers

    Which of the following statements is TRUE?

    <p>Ameloblastomas with multiple bony cavities mimic other multilocular lesions radiologically.</p> Signup and view all the answers

    What color does the amyloid material in calcifying epithelial odontogenic tumors typically exhibit after Congo red staining?

    <p>Apple-green</p> Signup and view all the answers

    Which odontogenic tumor is the only one known to contain amyloid?

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

    What is a characteristic feature that distinguishes calcifying epithelial odontogenic tumors from other odontogenic tumors?

    <p>Presence of clear cells</p> Signup and view all the answers

    How do calcifying epithelial odontogenic tumors behave in terms of recurrence following incomplete excision?

    <p>Recurrence is common</p> Signup and view all the answers

    What type of rings are produced when the amyloid material in calcifying epithelial odontogenic tumors mineralizes?

    <p>'Liesegang' rings</p> Signup and view all the answers

    In what category does calcifying epithelial odontogenic tumor fall according to the WHO Classification (2022)?

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

    Which of the following is the most common clinical presentation of a conventional/solid or multicystic intraosseous ameloblastoma?

    <p>A painless swelling or expansion of the jaw</p> Signup and view all the answers

    Which of the following statements is true about the location of conventional ameloblastomas?

    <p>They predominantly occur in the mandible, especially in the molar-ascending ramus area</p> Signup and view all the answers

    Which of the following radiographic features is characteristic of a conventional/solid or multicystic intraosseous ameloblastoma?

    <p>A multilocular radiolucent lesion with a &quot;soap bubble&quot; or &quot;honeycombed&quot; appearance</p> Signup and view all the answers

    What is the typical growth pattern of an untreated conventional/solid or multicystic intraosseous ameloblastoma?

    <p>It grows slowly to massive proportions if left untreated</p> Signup and view all the answers

    Which of the following clinical features is uncommon in cases of conventional/solid or multicystic intraosseous ameloblastoma?

    <p>Pain and paresthesia</p> Signup and view all the answers

    What is the typical location of conventional ameloblastomas in the maxilla?

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

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