[Ultrasonic diagnosis of space-occupying lesions of the kidney (author's transl)].

In 140 patients who were suspected of having space-occupying lesions of the kidney the ultrasound findings were analysed. There were no false negative results. Out of 4 false positives two could be explained by nontumourous focal renal disease. In a further 10 cases a space-occupying lesion could not be excluded with certainty on the grounds of the ultrasound investigation alone. Out of a total of 96 space-occupying lesions (48 solid tumours, 48 cystic processes) 83 were correctly diagnosed sonographically.