“…29% of these studies involved the genitourinary tract or adjacent retroperito neal and pelvic tissues. The basic principles, techniques, anatomic relationships and pathology encountered with CT studies of the urinary tract are detailed and well illus trated by several reports [2,3,[6][7][8][9][10][11][12], Of interest to the nephrologist is the role of the abdom inal CT examination in the detection or evaluation of uri nary tract or retroperitoneal masses, investigation of the unilateral malfunctioning kidney and evaluation of uri nary tract trauma. In the future, CT scans may aid the study of renovascular hypertension [13], renal ischemia [14], and renal excretory function [15, 16], Renal, Retroperitoneal, and Pelvic Masses…”