Continuous lesion without skip,or carpeting of the whole colon is classic for ulcerative colitis.

Mucosal inflammation causes a granular appearance to the surface of the bowel. As inflammation increases, the bowel wall and haustra thicken. Mucosal ulcers are undermined (button-shaped ulcers). When most of the mucosa has been lost, islands of mucosa remain giving it a pseudo-polyp appearance.

A unique case from Prof. Saeed Rad, Tabriz, Iran.