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Article
July 1983

Pityriasis RotundaA Cutaneous Sign of Malignant Disease in Two Patients

Author Affiliations

From the Department of Dermatology, Baragwanath Hospital and the University of the Witwatersrand, Johannesburg, South Africa.

Arch Dermatol. 1983;119(7):607-609. doi:10.1001/archderm.1983.01650310069015
Abstract

• The term pityriasis rotunda refers to strikingly circular scaly lesions, with the histologic appearance of ichthyosis vulgaris. Pityriasis rotunda has been described in the Japanese, South African blacks, and West Indian blacks. The condition occurs only in association with certain serious systemic illnesses, usually tuberculosis, or malignant neoplasms or less severe diseases of the female genital tract (eg, fibroids, ovarian cyst). We describe two South African blacks with pityriasis rotunda and neoplasms. The cutaneous lesions cleared when the primary neoplasm was treated.

(Arch Dermatol 1983;119:607-609)

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