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Article
June 1985

An Unusual Defect Resembling Pili Bifurcati

Author Affiliations

Istituto di Clinica Dermatologica Prima e Dermatologia Pediatrica Università di Milano Via Pace 9 20122 Milan, Italy

Arch Dermatol. 1985;121(6):718. doi:10.1001/archderm.1985.01660060030015
Abstract

To the Editor.—  The patient we describe has hypotrichosis associated with modifications of the hair structure that, in our view, do not fully fit into any of the previously described clinical pictures.

Report of a Case.—  A 16-year-old boy complained of an almost totally hairless patch, about 8 to 10 cm in diameter, on the parietal occipital scalp and the vertex (Fig 1). In the surrounding areas, hairs were sparse but coarser than usual. The hairs had a horsehairlike consistency. The eyebrows were also thinner and body hair was reduced. Axillary and pubic hair were normal. At birth his scalp was normal. Abnormalities appeared during the fifth year of life, with progressive thinning of hair in the temporal region and at the vertex. The patient has never had serious diseases. One sister had psoriasis. Blood chemistry test results were normal. Histologic examination of the follicle was not performed because the

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