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Dentistry · Oral medicine and oral cancer: leukoedema
Sample itemA dark-skinned smoker has a bilateral milky-grey film on the buccal mucosa that fades when the cheek is stretched and cannot be scraped off. What is it?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
B. Leukoedema
Leukoedema is a common, benign variation of the buccal mucosa that is more obvious in dark-skinned individuals and smokers. It disappears or fades on stretching and requires no treatment, unlike leukoplakia.
Option by option
A. Pseudomembranous candidiasis
Candidiasis plaques wipe off and leave a red base.
B. Leukoedema (correct)
Correct. A film that fades on stretching and does not rub off is leukoedema.
C. White sponge nevus
White sponge nevus is a thick, folded, familial lesion present from childhood.
D. Leukoplakia
Leukoplakia is a fixed white plaque that does not fade on stretching.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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