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Clinical Notes, New Instruments and Techniques
April 1962

White Piedra: Occurring on the Pubic Hair of a Native Caucasian North American

Author Affiliations

ANN ARBOR, MICH.
From the Department of Dermatology, The University of Michigan.

Arch Dermatol. 1962;85(4):534-536. doi:10.1001/archderm.1962.01590040098018
Abstract

In 1951, Scott1 described the only case of Trichosporon bigelii (T. cutaneum) infection to be reported in an individual who had never been out of the continental United States. The purpose of this report is to record another such instance.

The patient, a 23-year-old, single, white male student, was seen in August, 1960, complaining of a disorder of the pubic hair. The shafts of most of the hair of this region were involved with asymptomatic, tenacious, brownish-black nodules. Initially, he was thought to have trichomycosis axillaris. This clinical diagnosis, an infection caused by Corynebacterium tenuis, was made for 3 reasons: (1) probability; (2) the deceptive macroscopic appearance of these nodules which formed a continuous sheath along many of the hair shafts (Fig. 1), and (3) the unusual site of the patient's involvement. Conant2 and others3-5 state

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