Abstract
A case of renovascular hypertension with localized ischemia in the left kidney is described. The captopril test and renography showed a pattern typical of renin-dependent unilateral renovascular hypertension. However, renal arteriography did not show stenosis of the renal artery. Enhanced and dynamic computed tomography revealed ischemia in the dorsal portion of the left kidney and an aortic dissection with thrombosis, suggesting obstruction of the supplemental renal artery of double renal arteries. The localized renal ischemia was attributed to insufficient blood supply from the main renal artery to the obstructed area.(Hypertens Res 1993; 16: 221-224)
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