Which oral mucosal lesion is most likely to show severe epithelial dysplasia or carcinoma when biopsied?

  • Correct answer

    Erythroplakia

  • Homogeneous leukoplakia

  • Frictional keratosis

  • Leukoedema

This question is one of 15 in AFK practice: Oral medicine, pathology and radiology. Test yourself on all of them.

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Explanations

  • Most erythroplakias show severe dysplasia, carcinoma in situ or invasive carcinoma at biopsy, a much higher rate than homogeneous leukoplakia. Frictional keratosis and leukoedema are benign, non-premalignant conditions.

    Source: Neville et al., Oral and Maxillofacial Pathology — oneguy

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