Is Colonoscopy Still Mandatory After a CT Diagnosis of Left-Sided Diverticulitis: Can Colorectal Cancer be Confidently Excluded?

Abstract

We recommend routine colonoscopy after an attack of presumed left-sided diverticulitis in patients who have not had recent colonic luminal evaluation. The rate of occult carcinoma is substantial in this patient population, in particular, when abscess, local perforation, and fistula are observed.