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December 1985

Recurrent Hyperkeratotic Papules Following Superficial Trauma

Author Affiliations

University of Texas Medical School, Houston

Arch Dermatol. 1985;121(12):1555-1556. doi:10.1001/archderm.1985.01660120081026

REPORT OF A CASE  A 30-year-old man reported recurrent hyperkeratotic papules in areas of trauma since early childhood. Lesions occurred almost everywhere on his body but were most prevalent on his face, arms, and hands. Each lesion increased in size for about four to five weeks and then regressed after the hyperkeratotic plug fell out. Healing resulted in mild atrophy, hypopigmentation, or hyperpigmentation. The patient could not recall a time when he was totally free of lesions. He was in excellent health, and had no history of diabetes or renal disease. His brother's daughter had similar lesions, and his parents were not consanguineous.Physical examination revealed about ten lesions scattered over the patient's hands and arms (Fig 1). Lesions ranged from 2 to 5 mm in diameter, each with a central hyperkeratotic umbilicated plug (Fig 2). Some were present in a linear configuration, suggesting a Koebner reaction.A skin biopsy

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