Abstract
In recent years many reports have appeared concerning a group of disorders featured by peculiar lesions of small arteries, namely, periarteritis nodosa, lupus erythematosus disseminata, Libman-Sacks "disease" and the syndromes described by Friedberg and Gross. The terminology used in referring to these varied conditions is much confused and is by no means certain, but some relation among them at least seems possible. In searching for a useful clinical designation for the entire group W. Dock suggested "visceral angiitis," and this term has been in common use in the Stanford clinic for the past few years.1 Although the occurrence of renal lesions in association with visceral angiitis is well known,2 the reported studies on the urine3 of patients with this condition have not been adequate. A series of 21 cases encountered in the last two years has furnished an unusual opportunity to make exact quantitative studies of the

This publication has 3 references indexed in Scilit: