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Polykeratosis of Touraine. Presented by Dr. Carl T. Nelson.
A 14-year-old white girl had a small hemangioma on the forehead at birth, which involuted and disappeared by the fourth month of life. At 6 months, reddened hyperkeratotic patches appeared on the thighs and these were followed by similar involvement of the buttocks, lower legs, feet, arms, and hands. The trunk remained clear. With the passage of time, the involved areas have become less reddened and somewhat less hyperkeratotic. At the age of 11, the hyperkeratotic patches gradually disappeared from the thighs, buttocks, and arms.The patient has remained active and healthy with no manifestations of underlying disease.
The patient now shows symmetrically distributed hyperkeratotic brownish plaques on the dorsa of the feet, lateral surfaces of the lower legs, knees, elbows, and knuckles (Fig 1, 2, 3, and 4). Other parts of the body are clear.
NEW YORK DERMATOLOGICAL SOCIETY. Arch Dermatol. 1967;96(3):349–352. doi:10.1001/archderm.1967.01610030127023
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