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Dermatology · Skin tumours: mammary Paget disease
Sample itemA 58-year-old woman has a unilateral, scaly, eczematous patch of the nipple and areola that has not responded to topical steroids over several months. Which step is most appropriate?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
B. Punch or wedge biopsy of the nipple lesion with breast imaging
Unilateral nipple eczema that does not heal should raise suspicion of Paget disease of the breast, which is almost always linked to underlying ductal carcinoma in situ or invasive breast cancer. Biopsy shows large pale Paget cells in the epidermis, and breast imaging is required.
Option by option
A. Reassurance, as it is nipple eczema
Reassurance is unsafe for a persistent unilateral nipple lesion.
B. Punch or wedge biopsy of the nipple lesion with breast imaging (correct)
Correct. Biopsy and breast imaging are needed to find the underlying carcinoma.
C. Continue a potent topical steroid for six more months
More steroid delays the diagnosis of an underlying malignancy.
D. Oral antifungal therapy
An antifungal does not treat Paget disease and delays diagnosis.
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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