Colocolic fistula (Crohn disease)
Known patient of Crohn disease came with increasing abdominal pain.
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Pulled up cecum. Extensive circumferential mural thickening and stratification is seen involving cecum, ascending colon, and proximal third of transverse colon with a colocolic fistulous track communicating between ascending colon and transverse colon. There is extensive pericolonic fat stranding surround by multiple enlarged inflamed lymph nodes. Engorged vasa rectae with mild fluid in paracolic gutter.
Rest of the bowel loops are normal. All other solid abdominal viscera are normal.
Episodes of exacerbation and remission are commonly encountered in inflammatory bowel disease.
Some of the long term commonly encountered complications include bowel strictures, adhesions, enterocutaneous or enteroenteric fistulations, intra abdominal abscess formation.
The prior study of this patient done 5 months ago (images not provided) did show the extensive large bowel involvement, however no fistulation existed. This is a new development. No intra abdominal abscesses are present though.