Colonic perforation in renal transplant patients.

Review of 713 renal transplant patients at the Medical College of Wisconsin yielded 17 (2.3%) with spontaneous colon perforation. The cause seemed to be related to nonocclusive ischemia in the majority of cases (nine). The sigmoid colon was the most common site of perforation (nine cases). The early detection of colon perforation suspected on radiographic examination was associated with improved survival statistics.