Percutaneous Nephrostomy (P.N.) has been traditionally used by Urologists. The authors seek to demonstrate the interest of its mastering by members of Nephrology teams, by reviewing 27 cases of unilateral or bilateral P.N. performed in a Nephrology unit from 1983 to 1991. The single most frequent indication for P.N. was Acute or Chronic Renal Insufficiency of obstructive etiology (21 cases), followed by infecte...