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Dentistry · Oral medicine and oral cancer: hand, foot and mouth disease
Sample itemA 4-year-old has fever, painful oral ulcers and small vesicles on the palms and soles, and several classmates are similarly affected. Which virus is the usual cause?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
A. Coxsackie A16
Hand, foot and mouth disease is caused by enteroviruses, most often Coxsackie A16. It is self-limiting and treated supportively.
Option by option
A. Coxsackie A16 (correct)
Correct. Coxsackie A16 is the commonest cause.
B. Varicella zoster virus
VZV causes vesicles on the trunk and not typically on palms and soles with oral ulcers.
C. HSV-1
HSV-1 produces gingivostomatitis without palm and sole lesions.
D. Parvovirus B19
Parvovirus B19 causes slapped cheek disease.
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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