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Dermatology · Viral infections
Sample itemWhat pattern is most typical of herpes zoster?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
A. Painful grouped vesicles in a dermatomal distribution
Herpes zoster causes painful grouped vesicles along a dermatome because latent varicella-zoster virus reactivates in a sensory ganglion.
Option by option
A. Painful grouped vesicles in a dermatomal distribution (correct)
Correct: dermatomal painful vesicles are classic for zoster.
B. Symmetric target lesions after every meal
Target lesions are not the usual zoster pattern.
C. Painless diffuse scaling of both soles
Diffuse sole scale has a different differential.
D. A single comedone on the cheek
A comedone is an acne lesion.
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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