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Lichen Urticatus. Presented by Dr. W. H. Connor.
J. S., a Negro boy, aged 8, from the service of Dr. Cole and Dr. Driver at the City Hospital, is well developed and well nourished and has had no previous illnesses. In August 1934 an eruption appeared on the forearms and spread to the face and arms. It was accompanied by marked itching and became progressively worse.
There is a more or less generalized papular eruption, which is most intense on the forearms and face. The lesions are primarily urticarial papules with excoriated tops. The older, healed lesions leave a small area of decreased pigmentation with a surrounding halo of hyperpigmentation.
The Wassermann reaction of the blood was negative. Blood counts gave negative results. Examination of feces showed no intestinal parasites. Tests with tuberculin were negative.
Biopsy showed a moderate amount of acanthosis and hyperkeratosis in the epithelium. The granular