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The surface of lichen planus lesions may show white lines in a variable configuration (Wickham striae). These are characteristic but not apparent in many patients. Their recognition has been traditionally improved by painting the lesions with oil. Bringing this old approach up-to-date, we consider it worthwhile to communicate our experience in an atypical patient for whom exploration with a handheld dermatoscope allowed easier recognition of Wickham striae and facilitated the diagnosis of lichen planus. Moreover, it also allowed direct observation of the adjoining microvasculature.

Report of a Case

A 35-year-old man was diagnosed in our department as having psoriasis vulgaris of 2 years' duration. He had nonpruriginous, sharply demarcated, erythematous plaques covered with silvery scales on his elbows and knees. At one follow-up examination, he presented with new lesions on the flexor surface of forearms and wrists. The lesions were nonscaling, erythematous, violaceous, isolated, flat papules. They had appeared in the last 2 months . . . [Full Text of this Article]

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