Features of acute uncomplicated diverticulitis involving the proximal part of ascending colon, with clinical presentation mimiking acute appendicitis. The patient would be treated conservatively.

Right-sided colonic diverticulitis is hard to suspect clinically as it is much less common than left-sided diverticulitis, occurs in younger age and mimics the most common differential acute appendicitis. It is hard to distinguish between both clinically and can be mistaken for carcinoma intraoperatively ^1,2.