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Article
June 1979

Eruptive Vellus Hair CystClinical and Histologic Findings

Author Affiliations

From the Department of Dermatology, Yonsei University College of Medicine, Seoul, Korea.

Arch Dermatol. 1979;115(6):744-746. doi:10.1001/archderm.1979.04010060052032
Abstract

This is, to our knowledge, the second report of eruptive vellus hair cysts. The lesions, which occurred in an 18-year-old woman, consisted of 35 to 40 brownishblack, 1- to 4-mm papules on the anterior aspect of the chest. Histologically, the lesions consisted of small cysts in the middle dermis that contained laminated and amorphous keratinous material and vellus hairs. The cyst wall consisted of several layers of squamous epithelium with a rudimentary follicle attached to its outer aspect. The lesions regressed spontaneously after ten months. The pathogenesis is obscure but the condition appears to be a new distinctive entity.

(Arch Dermatol 115:744-746, 1979)

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