摘要: Operations on the kidneys do not differ, in principle, from those other organs insofar as necessity of accurate preoperative diagnosis, well-founded indications, satisfactory operative technique, and rational pre- postoperative treatment is concerned. Since, however, are paired have a vital function, specia1 demands made examination choice operation. It accordingly essential, even apparently unilateral involvement, to elucidate with greatest possible care morbid anatomy function both kidneys. The surgeon must bear mind at all times that an operation one kidney where conservative surgery envisaged may, necessity, lead nephrectomy or such functional impairment outcome will be dependent integrity contralateral kidney.