Perforation of the sigmoid colon simulating acute appendicitis.Isr J Med Sci. 1980 Sep-Oct; 16(9-10):646-8.IJ
Diverticulitis and carcinoma with abscess formation following perforation of the redundant sigmoid colon was erroneously diagnosed as acute appendicitis in nine patients over a period of five years. As te inflammatory process develops in the right lower quadrant of the abdomen, lack of previous colonic pathology may lead to a misdiagnosis, usually of acute appendicitis. It should be borne in mind, however, that acute appendicitis decreases with age, whereas diverticula and carcinomas increase, and that the sigmoid colon is often a redundant organ with a tendency to migrate to the right side of the abdomen. In elderly patients with acute right abdominal pathology, it is important to operate through a transrectal or paramedian incision. A two-stage operation is preferable to a three-stage one.