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Article
January 1950

PARAKERATOSIS SCUTULARIS (OSTRACEA)

Arch Derm Syphilol. 1950;61(1):89-93. doi:10.1001/archderm.1950.01530080095009
Abstract

THE CASE about to be reported is of one of those very rare anomalies which fall under the title of parakeratosis scutularis (ostracea), a name contributed to dermatology by Unna in 1890.1

REPORT OF A CASE

History.—S. McL., a Scotsman aged 66, appeared at a clinic of St. John's Hospital for Diseases of the Skin in the summer of 1948. He stated that thirty-four years ago a scaly rash had developed on the elbows, the backs of the forearms and the anterior aspect of the lower limbs from the middle third of the thighs to the ankles. Heaped-up lesions began to appear on these sites within six months. After an interval of approximately five years, some lesions resolved, leaving scars. There had never been any subjective symptoms. The patient had tried innumerable local applications, without benefit. The only medicine he had taken internally was acetylsalicylic acid.

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