[Peroperative ultrasound echotomography of the kidney]

The authors report their experience of seeking calyceal lithiasis and venous neoplastic spread in carcinomas of the kidney by peroperative echotomography. The reliability of the method was excellent since it led to exact localisation of residual stones in 10 cases out of 11 with a definition of the order of a millimetre. A simple and effective method, echotomography should be of great value in lithiasis surgery. Ultrasound is also of value in surgery for carcinoma of the kidney, both for verification of the state of venous flow as well as investigation of the quality of the remaining parenchyma following conservative surgery.