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Article
March 1981

Acquired Localized Hypertrichosis

Arch Dermatol. 1981;117(3):127-128. doi:10.1001/archderm.1981.01650030003003
Abstract

To the Editor.—  The sudden appearance of excessive hair growth in an abnormal site is a common occurrence, although seldom reported. This is a case report of the development of hypertrichosis at the sites of postinflammatory changes after multiple insect bites.

Report of a Case.—A  2-year-old girl was seen at our clinic at Cook County Hospital, Chicago, in November 1978. She had a six-month history of new hair growth in areas that had previously been traumatized by multiple insect bites during the summer. She had had intense pruritus and had scratched the areas repeatedly. Other members of her family were unaffected.The lesions were multiple, hyperpigmented 1- to 2-cm round or oval macules with discrete tufts of hair arising from them (Fig 1). The distribution was widespread over the trunk, extremities, and, to a lesser extent, the face (Fig 2). The interscapular and diaper areas were spared.A biopsy specimen

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