This article is only available in the PDF format. Download the PDF to view the article, as well as its associated figures and tables. A Case for Diagnosis (Necrobiosis Lipoidica Diabeticorum? Xanthoma Diabeticorum with Necrosis?). Presented by Dr. Samuel Feldman. H. D., aged 5 years, was admitted to the Morrisania City Hospital on Dec. 4, 1935. The mother states that for the past six months the child has lost weight and has suffered from increased thirst, polyuria and nocturia. Shortly after the appearance of these symptoms an eruption developed on the back of each elbow. The child's condition was mistakenly attributed elsewhere to poor nutrition, and a diet high in carbohydrate and fat content was prescribed. The child appears ill and poorly nourished and weighs only 30 pounds (13.6 Kg.). The breathing is rapid and the pulse rate is increased, but there is no elevation of temperature. There is a definite odor of acetone on the breath. There is general adenitis. The edge of the liver is 2 inches (5 cm.) below the costal