The appearance of a straight and rigid "pipestem colon" is characteristic of

The appearance of a straight and rigid "pipestem colon" is characteristic of chronic ulcerative colitis. Ulcerative colitis is an inflammatory bowel disease that causes the inflammation and ulcers in the colon. The chronic ulcerative colitis is the rare form of colitis that affects the entire colon and causes severe pain, profuse diarrhea, bleeding, fever and inability to eat.

i would have to say autosomal