Abstract : Among the different causes of pulmonary edema, there are all the clinical situations with hydrosaline overload. A significant (> 70%) bilateral renal artery stenosis or a unilateral stenosis in the presence of a solitary kidney is one possibility. Recurrent acute pulmonary edema not fully explained on a cardiac basis is rather typical for such a disease in a cardiac patient with moderate renal failure aggravated when angiotensin converting enzyme inhibitors are used