A 47-year-old white woman presented for evaluation of multiple asymptomatic patches on her left thigh. The lesions first began 8 years earlier and slowly increased in number and size. The patient was in otherwise excellent health, and there was no history of drug intake or previous trauma to the site.
Physical examination revealed multiple grouped, roundish to irregularly shaped, yellowish brown, smooth patches, ranging in size from a few millimeters to 2 cm, on the extensor aspect of the left thigh (Figure 1). The lesions did not blanch on pressure and were not infiltrated.
Nasca MR, De Pasquale R, Dinotta F, Micali G. Multiple Unilateral Persistent Pigmented Patches on the Lower Extremities. Arch Dermatol. 2000;136(8):1055-1060. doi: