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Article
September 1961

Lichen Planus Occurring in Psoriasis

Author Affiliations

ELMHURST, N.Y.

From the Division of Dermatology of the Department of Medicine, State University of New York, Downstate Medical Center.

Arch Dermatol. 1961;84(3):508-509. doi:10.1001/archderm.1961.01580150154030
Abstract

Reports on the occurrence of lichen planus in patients with psoriasis are rare. In reviewing the literature, only a few such cases were found.

In 1907, Gottheil1 presented a patient with longstanding psoriasis who developed 2 attacks of lichen planus. In this patient, both diseases were present simultaneously. Rostenberg,2 in 1922, presented a psoriatic patient whose psoriasis cleared when she developed lichen planus. This author also referred to 2 cases reported by Graham and Little, where psoriasis and lichen planus were present simultaneously. Rostenberg, Jr.,3 in 1958 referred to a patient with both psoriasis and lichen planus presented by Oliver. In 1927, Brocq4 presented a patient with lichen planus in whom the disease closely simulated psoriasis. He discussed the possible interrelationship between lichen planus and psoriasis, and lichen planus and parapsoriasis. Pinkus,5 in 1958 mentioned cases which appeared to start as pityriasis rosea and then

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