[Postoperative polyuria after laparoscopic adrenalectomy for pheochromocytoma]. / Postoperative Polyurie nach laparoskopischer Adrenalektomie wegen Phäochromozytom.

Disturbances of osmoregulation leading to polyuria are well known complications after operations in the sella region. In contrast, increased urinary output following adrenalectomy is rare. We report a case of postoperative polyuria after laparoscopic adrenalectomy for pheochromocytoma with urine output up to 15 l per day. Treatment included careful monitoring of the patient and intravenous and oral replacement of fluids and electrolytes. In our case a normalisation of the urine output was observed after few days. A further treatment with vasopressin was not undertaken as the osmolality at all times was in normal range.

Application of radioimmunoassay (RIA) for the determination of residues of anabolic sex hormones.

Based on the basic principles of radioimmunoassay (RIA), it can be expected that by using this method, residues of anabolic sex hormones in animal tissues can be quantitated in the ng/g to pg/g range with adequate reliability. This was demonstrated for various endogenous and exogenous steroids as well as for stilbene-estrogens. Using the RIA for DES as a regulatory method allowed the successful control of the misuse of this compound in animal production, especially by examination of excreta. Also, for muscular tissue, an interlaboratory validation study yielded acceptable results. The need for confirmatory methods is stressed.

Spontaneous external drainage of renal abscess through persistent nephrostomy tract eleven years after percutaneous nephrolithotomy.

A unique case of spontaneous external drainage of a renal abscess through a persistent nephrostomy tract is reported in a patient with a history of two subsequent percutaneous nephrolithotomies 11 years earlier. Nephrostomy tracts can open up even after several years to provide an exit path for infected urine or renal abscess drainage.