Background:Cecal diverticulitis is a relatively rare problem in the Western world. It is often clinically indistinguishable from acute appendicitis.Case Report:We present a case of a young woman who was suspected to have acute appendicitis prior to operation. At operation an unexpected and suspicious cecal mass was found and the procedure was revised to a right hemicolectomy. Subsequent histological examination revealed an acutely inflamed solitary, congenital diverticulum of the cecum.Conclusions:We would like to highlight this uncommon condition to ensure that its first encounter is not in the operating theatre. The varied and controversial management options are briefly discussed.

Keywords: Appendicitis - diagnosis, Cecal Diseases - congenital, Cecal Diseases - diagnosis, Diagnosis, Differential, Diverticulitis - diagnosis, Diverticulum - congenital, Diverticulum - diagnosis, Gastroenteritis - diagnosis