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Article
July 1993

Resolving Pityriasis Rubra Pilaris Resembling Erythema Gyratum Repens

Author Affiliations

Department of Dermatology Royal Perth Hospital Box X2213 GPO Perth, Australia 6001

Arch Dermatol. 1993;129(7):917-918. doi:10.1001/archderm.1993.01680280107033
Abstract

To the Editor.—  Pityriasis rubra pilaris is a term used to describe patients showing, in varying degrees, circumscribed follicular keratosis, palmoplantar keratoderma, and erythroderma. Griffiths1 has classified these patients into five separate types. We describe two patients with type 1, classic adult-onset pityriasis rubra pilaris in whom erythema gyratum repens developed as their eruption resolved.

Report of Cases.—Case 1.—  A 67-year-old white man had been treated for classic adult (type 1) pityriasis rubra pilaris over the last 6 years. On examination, the patient had erythroderma affecting the majority of his skin. Islands of unaffected skin, about 1 cm in diameter, were scattered between the sheets of erythema. There was fine scaling on the face and scalp that became thicker as it progressed caudally. The palms and soles were affected by an orange-yellow keratoderma. Follicular hyperkeratosis was most marked over the dorsa of the hands and on the

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