Clostridium difficile pouchitis after proctocolectomy with ileal pouch-anal anastomosis

[...]it was thought to be safest to return to the operating room to explore the abdomen and as- certain the absence of postsurgical complications that the CT scan may not have shown such as ischemic or severe inflammatory changes in the pelvic pouch. [...]of stasis and a higher anaerobic bacterial concentration, mimicking the co- lonic microenvironment, the ileal mucosa appears to undergo "colonic metaplasia" with flattening of its villi and increasing goblet cells.