Oral Epithelial Dysplasia Quiz
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Questions and Answers

What is the primary risk factor for oral potentially malignant disorders and oral cancer?

  • Actinic radiation
  • Tobacco (correct)
  • Alcohol
  • Chronic infections

    • What is the characteristic feature of severe epithelial dysplasia?

  • Involvement of at least half the epithelium
  • Involvement of the lower 1/3 of the epithelium
  • Involvement of the entire epithelium
  • Involvement of most of the epithelium thickness (correct)

    • What is the effect of nicotine on oral cancer?

  • It is not carcinogenic by itself (correct)
  • It is a direct carcinogen
  • It reduces the risk of oral cancer
  • It increases the permeability of mucosa to carcinogens

    • What is the role of alcohol in oral cancer?

    <p>It increases the permeability of mucosa to carcinogens</p> Signup and view all the answers

    What is the effect of ultraviolet radiation on the lip?

    <p>It causes characteristic mutations in cellular DNA</p> Signup and view all the answers

    What is the role of candida albicans in oral lesions?

    <p>It is a type of fungus</p> Signup and view all the answers

    What is the term for abnormal growth of epithelial cells in the mouth?

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

    What is the term for a white patch on the oral mucosa?

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

    What percentage of oral submucous fibrosis cases show signs of epithelial dysplasia?

    <p>10-15%</p> Signup and view all the answers

    Which of the following is a clinical feature of oral submucous fibrosis?

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

    What is the main cause of oral submucous fibrosis?

    <p>Areca nut betel quid chewing</p> Signup and view all the answers

    What is the characteristic histopathological feature of oral submucous fibrosis?

    <p>Juxta epithelial and submucosal deposition of densely collagenized, hypovascular connective tissue</p> Signup and view all the answers

    What is the prognosis of oral submucous fibrosis?

    <p>It does not regress with habit cessation</p> Signup and view all the answers

    What is the oral lesion that is completely reversible?

    <p>Nicotine Stomatitis</p> Signup and view all the answers

    What is the risk of malignant transformation in the palate except for?

    <p>Reverse smokers</p> Signup and view all the answers

    What is the aim of this lecture?

    <p>To detail the histopathological aspects of oral epithelial dysplasia</p> Signup and view all the answers

    What is the characteristic appearance of thick or fissured leukoplakia?

    <p>Leathery, with deep fissures</p> Signup and view all the answers

    Which of the following is a high-risk clinical variant of leukoplakia for malignant transformation?

    <p>Speckled leukoplakia</p> Signup and view all the answers

    What is the term for white patches on oral mucosa that cannot be rubbed off and cannot be characterized clinically as any other disease?

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

    What is the histological feature of leukoplakia that is characterized by a thickened surface keratin layer?

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

    What is the term for a severe and aggressive form of oral potentially malignant disorder that is multifocal, has a progressive course, and has a high recurrence rate?

    <p>Proliferative verrucous leukoplakia</p> Signup and view all the answers

    What is the site most commonly affected by leukoplakia?

    <p>Buccal mucosa</p> Signup and view all the answers

    What is the characteristic feature of speckled leukoplakia?

    <p>Red patches</p> Signup and view all the answers

    What is the histological feature of leukoplakia that is characterized by an intact basement membrane?

    <p>Intact basement membrane</p> Signup and view all the answers

    Which clinical presentation carries the greatest risk of cancer development in the oral cavity?

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

    Which of these histopathological features is NOT typically associated with severe epithelial dysplasia?

    <p>Normal variation in nuclear size and shape</p> Signup and view all the answers

    Which of the following is classified under oral potentially malignant disorders characterized by the presence of white patches?

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

    Which architectural changes are indicative of oral epithelial dysplasia?

    <p>Drop-shaped rete ridges and loss of epithelial cell cohesion</p> Signup and view all the answers

    What is a common risk factor for Actinic Cheilitis?

    <p>Exposure to UV radiation</p> Signup and view all the answers

    What category of lesion is synergistically elevated by the habit of reverse smoking?

    <p>Palatal lesions due to reverse smoking</p> Signup and view all the answers

    Which of the following is NOT a cytological change seen in oral epithelial dysplasia?

    <p>Normal mitotic figures</p> Signup and view all the answers

    Which feature is most characteristic of abnormal epithelial stratification in oral epithelial dysplasia?

    <p>Premature keratinization in single cells</p> Signup and view all the answers

    Which clinical feature is most indicative of erythroplakia?

    <p>Well-demarcated red macule or plaque</p> Signup and view all the answers

    What is the most common cause of white color in leukoplakia?

    <p>Masking of underlying vascularity</p> Signup and view all the answers

    Which histological feature is least associated with erythroplakia?

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

    What is the least likely condition to be included in the clinical differential diagnosis of leukoplakia?

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

    Which factor is least likely to contribute to the development of actinic cheilitis?

    <p>Indoor occupations</p> Signup and view all the answers

    Which feature best differentiates erythroplakia from other red lesions?

    <p>Flat or depressed character</p> Signup and view all the answers

    What should be the primary treatment approach for oral leukoplakia?

    <p>Avoidance of causative factors</p> Signup and view all the answers

    Which clinical feature is not associated with actinic cheilitis?

    <p>Rapid lesion development</p> Signup and view all the answers

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