Oral and Maxillofacial Pathology I: Cysts and Cyst-Like Lesions

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Questions and Answers

Which type of cyst is defined as an inflammatory odontogenic cyst occurring in the periodontium of the tooth?

  • Botryoid Odontogenic Cyst
  • Radicular Cyst
  • Lateral Periodontal Cyst (correct)
  • Eruption Cyst

What type of cyst is formed from the remnants of the dental lamina?

  • Orthokeratinized Odontogenic Cyst
  • Epithelial Rests of Malassez (correct)
  • Glandular Odontogenic Cyst
  • Dentigerous Cyst

Which cyst is associated with the crown of an unerupted or impacted tooth?

  • Dentigerous Cyst (correct)
  • Nasopalatine Duct Cyst
  • Gingival Cyst of Adult
  • Median Alveolar Cyst

What type of cyst arises from the rests of the dental lamina?

<p>Odontogenic Keratocyst (B)</p>
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Which cyst is often associated with an unerupted or developing tooth?

<p>Eruption Cyst (D)</p>
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Which cyst arises from the remnants of the dental lamina and its remnants?

<p>Primordial Cyst (A)</p>
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What type of cyst is characterized by its association with the nasopalatine duct?

<p>Nasopalatine Duct Cyst (A)</p>
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Which cyst is also known as a botryoid odontogenic cyst and typically presents as a multilocular radiolucency in the maxilla or mandible?

<p>Botryoid Odontogenic Cyst (A)</p>
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Which cyst is a developmental odontogenic cyst that occurs in the midline of the maxilla between the central incisors?

<p>Median Palatal Cyst (B)</p>
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What is the most common odontogenic cyst of the oral cavity?

<p>Inflammatory apical cyst (D)</p>
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What is the histogenesis of the inflammatory apical cyst?

<p>Epithelial rests of Malassez within a granuloma (D)</p>
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Which clinical feature is typically associated with the inflammatory apical cyst?

<p>Numbness of the lower lip when the cyst enlarges and presses on the inferior alveolar nerve (C)</p>
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What is the characteristic radiographic appearance of an infected inflammatory apical cyst?

<p>Diffuse radiolucency without a radiopaque margin (C)</p>
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What type of epithelial lining is typically found in the inflammatory apical cyst?

<p>Hyperplastic non-keratinized stratified squamous epithelium (B)</p>
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Which component is characteristic of the connective tissue wall in the inflammatory apical cyst?

<p>Dystrophic calcification (Basophilic bodies) (C)</p>
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What is typically found in the cystic fluid of an inflammatory apical cyst unless infected?

<p>Yellowish, transparent fluid (sterile unless infected) (C)</p>
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What type of tissue may be elicited on pressure when an inflammatory apical cyst enlarges and causes bone thinning?

<p>Egg-shell crackling due to thin bone (A)</p>
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What does aspiration biopsy reveal in an inflammatory apical cyst, aiding in differentiation from tumors?

<p>Presence of a fluid, valuable aid in differentiating cysts from tumors (D)</p>
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What does an infected inflammatory apical cyst typically behave as?

<p>Inflammatory abscess with sudden onset of severe pain (A)</p>
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