A 70-year-old white man presented with a 3-week history of a pruritic eruption on his trunk. The lesions had initially developed on one side andsubsequently appeared on the other side as well. The patient was taking no medications at the time and was otherwise healthy. A review of the systemsrevealed no abnormalities. On physical examination, erythematous, indurated, well-demarcated plaques were seen extending from the axillae to the waiston both sides of the body (Figure 1). Both sides were identical, with symmetrical involvement. No other areas wereinvolved. A punch biopsy specimen was obtained for histopathologic examination (Figure 2 and Figure 3).
Bumgardner AC, Tschen JA, Nunez-Gussman JK, Hsu S. Erythematous Plaques on the Trunk of a Man—Quiz Case. Arch Dermatol. 2004;140(3):353-358. doi:10.1001/archderm.140.3.353-e