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A Case for Diagnosis (Granuloma Annulare? Necrobiosis Lipoidica Diabeticorum?). Presented by Dr. Herbert Rattner and Dr. Maurice Dorne.
Mrs. R. P., aged 59, presents two lesions of one year's duration. One, on the extensor surface of the right forearm, is a dime-sized sharply defined reddish plaque with a raised border and slightly depressed center. The other, on the dorsum of the right hand, is a similar plaque, slightly larger, and shows some telangiectasis. The surface of each lesion is smooth and shiny, and the follicular orifices are obliterated. She is now being treated for diabetes.
The Kahn reaction was negative. The urinalysis revealed normal values. Examination of the peripheral blood showed a hemoglobin content of 75 per cent, but otherwise the blood was normal. The sedimentation rate was 18 mm. in sixty minutes. Chemical examination of the blood showed: nonprotein nitrogen, 41 mg.; creatinine, 1.79 mg.; uric
Ebert MH, Caro MR. CHICAGO DERMATOLOGICAL SOCIETY. Arch Derm Syphilol. 1944;49(4):284–287. doi:10.1001/archderm.1944.01510100060018