(BMJ)—A 47-yo man presented w/ a 1-yr hx of a mildly pruritic penile rash. Exam: well circumscribed, red, desquamating lesion on glans penis. No lesions on scalp, trunk, extremities, oral mucosa, or nails. Rapid plasma reagin, treponema pallidum particle assay, and HIV all negative. Bx confirmed dx. What is it?
Balanitis xerotica obliterans
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Psoriatic balanitis
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Carcinoma in situ
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Angiokeratoma
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Lichen nitidus
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