A 65-year-old woman with renovascular hypertension and massive protein
uria is reported. Her urinary protein ranged from 3 to 5 g/day. Serum
potassium was 2.9 mEq/l. Plasma renin activity and plasma aldosterone
concentration were very high. A CT scan disclosed atrophy of the left
kidney. Renogram showed a non-functioning pattern of the left kidney.
An abdominal aortogram showed complete occlusion of the left renal art
ery at its ostium. After left nephrectomy, her high blood pressure and
urinary protein were normalized. It seemed that the massive proteinur
ia was mainly due to some endocrinological effect of the left kidney.