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The diagnosis of arteriosclerosis is simple. The chronic pyelonephritis, however, is in most cases not clearly to be diagnosed, but only with a certain probability. To the glomerulosclerosis is applied that conspicuous findings allow of a doubtless diagnosis. But not in the least seldom there exist certain difficulties, above all in the initial stage and in the clear limitation to glomerulonephritis. In the majority of these cases the modern morphologic investigation methods lead to a clarification, but also the exact anamnestic and clinical data may be very useful for a probability diagnosis.

In 40 diabetic inpatients the fatty acid pattern of triglycerides in liver fat and in subcutaneous adipose tissue was determined by gas liquid chromatography. With rising size of fat droplets in liver parenchymal cells there was a significant increase of palmitic acid (C∶16), oleic acid (C 18∶1) and linoleic acid (C 18∶2) as well as a decrease of myristoleic acid (C 14∶1), arachidonic (C 20∶4) and eicosapentaenoic acid (C 20∶5) in liver triglycerides, resulting in a fatty acid composition in big droplets similar to that of adipose tissue. Fatty acid pattern of subcutaneous depot fat was strikingly constant.