Proteinuria following renal arteriography. Report of two cases

Two patients reacting with transitory, massive proteinuria after diagnostic renal arteriography with a commonly used non-ionic contrast medium, metrizoate, are described. One of them developed temporary renal failure; the concentration of urinary albumin reached 330 g/g creatinine. It is suggested that intratubular precipitation of proteins, obstructing urinary flow, might be one factor in the development of her renal failure.