Pathology and pathogenesis of diverticular disease and patterns of colonic mucosal changes overlying the diverticula.

The aim of this article is to review the pathology of diverticular disease and draw attention to the histological changes that affect the wall and the mucosal lining of the sigmoid colon in this common condition. We were the first group to propose a histological classification for sigmoid colitis-associated diverticular disease, and in this paper we are adding another feature to our original observation.