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Dermatology · Fungal infections
Sample itemWhat is the appropriate caution before prescribing topical steroid for a suspected ring-shaped fungal rash?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
B. Steroid can mask and worsen tinea incognito
Topical corticosteroid can suppress visible inflammation while allowing dermatophyte infection to extend, producing altered tinea incognito morphology.
Option by option
A. Tinea cannot occur on the body
Tinea corporis commonly affects body skin.
B. Steroid can mask and worsen tinea incognito (correct)
Correct: steroids may disguise untreated fungal infection.
C. Fungal scrapings are never useful
KOH scraping can support diagnosis.
D. Steroid always cures dermatophyte infection
Steroids do not eradicate dermatophytes.
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.