Sa1757 Inverted Appendix on Screening Colonoscopy: Not That Benign after All!

Incidentally discovered inverted appendix at colonoscopy in an asymptomatic patient presents a diagnostic dilemma for the clinician. Currently there are no guidelines to suggest if further evaluation for this entity is warranted. It is a rare finding, with a reported incidence of 0.01%. Inverted appendix diagnosed on colonoscopy has typically been associated with benign conditions such as endometriosis or chronic appendicitis. However, the surgical literature suggests presence of an associated underlying malignancy on post-operative pathologic review in 43% of patients with an inverted appendix.