Giant Sigmoid Diverticula:A Review

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Abstract
Two patients with giant sigmoid diverticula are added to 13 cases reported in the literature and the clinical features of this rare complication of diverticulosis are reviewed. These lesions probably arise as pseudodiverticula of the sigmoid colon with herniation of the mucosa through the muscle wall. They become progressively inflated by colonic gas via a ball-valve type mechanism. They are best treated by resection of the diverticulum, in continuity with the involved sigmoid, and primary anastomosis.