[Ultrasonic findings in renal diseases with hypertension (author's transl)].

Ultrasound investigations of the kidney were performed in a prospective study in 51 patients with hypertension. It was shown by means of characteristic changes that renovascular and renal parenchymatous diseases can be differentiated. The case of renal atrophy could be demonstrated in 14 out of 20 cases with renovascular changes and in 15 out of 18 cases wtih primary renal parenchymatous disease. There were false positive results in two out of 13 cases of essential hypertension. The importance of intrarenal cysts in the aetiology of hypertension requires further investigation.