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Dermatology · Papulosquamous disorders: Wells syndrome
Sample itemA woman has recurrent itchy, burning cellulitis-like plaques on the limbs with no fever, no response to antibiotics and eosinophilia. Biopsy shows a dense dermal eosinophilic infiltrate. Which histological finding is characteristic?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
B. Flame figures
Wells syndrome (eosinophilic cellulitis) shows dense dermal eosinophils with flame figures, which are collagen coated by eosinophil granule proteins. It responds to oral steroids and often recurs.
Option by option
A. Touton giant cells
Touton giant cells are in juvenile xanthogranuloma.
B. Flame figures (correct)
Correct. Flame figures are characteristic of Wells syndrome, though not specific.
C. Munro microabscesses
Munro microabscesses are neutrophil collections in the stratum corneum in psoriasis.
D. Civatte bodies
Civatte bodies are apoptotic keratinocytes in lichen planus.
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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