Obstruction of the abdominal aorta is an almost commonplace diagnosis today. Most of the cases reported in the literature occur in the lower aorta, particularly at the bifurcation (3). There have been many examples of aortic occlusion at the level of the renal arteries, but in most instances these were secondary to a “Leriche“ type of atherosclerotic aortic occlusion (8), or they were due to syphilis (5) or coarctation (7, 9). The occlusion to be reported in this presentation was situated in the abdominal aorta above the renal arteries. A careful review of the literature failed to reveal a counterpart or a radiologic study of any other suprarenal atherosclerotic occlusive lesion. Baylin (2) and Ross and Mc-Kusick (12) described two cases which have certain resemblances to ours, but apparently no radiographs were obtained since the findings were discovered only during the autopsy examination. Case History J. C., a 45-year-old white male executive, was referred to Strong Memorial Hospital on Dec. 2, 1962, w...