Thirty-four cases suspected of having pathological chahges in the renal sinus were subjec-ted to routine ultrasonic examination combined with furosemide test. Sex. 17 each of male and female. Age: average 44

5. In this test

15/23 cases suspected of having renal stones were diagnosed

because it appears like gallstones with acoustic shadow

Furosemide ultrasonogra phy is helpful also in differentiation of echo-free lesions and hypoechoic lesions in the renal collecting system or between intrasinus lesions and

lesions of the sinus itself Whether anin-trasinus abnormal echo originating from the renal sinus itself or being due to protrusion of sinus lesion with the renal parenchyma can be identified too. This test is harmless and is worthy of being recommened