To the Editor.—
We have recently seen two cases of acute vesicular eruptions of the feet that progressed to pityriasis rosea, a previously unreported finding in this papulosquamous disease.Both patients were young adult males, aged 19 and 23, one black and one Mexican-American; the cases occurred three months apart. Each case began as a slightly pruritic, nonerythematous eruption of tense 1-mm to 9-mm vesicles on the soles and lateral aspects of the feet (Figure). In both men, potassium hydroxide preparations of vesicle roofs and skin scraping yielded negative findings, as did fungal and bacterial cultures. There was no history or evidence of contact or irritant dermatitis, and a standard series of patch tests all gave negative results.In both patients the eruption progressed during a period of one week to involve both feet up to the ankles with vesicles and crusting. During the second week both patients'