Colitis cystica profunda occurring in a radiation-induced colonic stricture

Localized colitis cystica profunda developed in a fibrotic radiation-induced colonic stricture 17 years after pelvic radiation for squamous carcinoma of cervix. This uncommon pathologic entity must be distinguished from invasive adenocarcinoma of colon, and colonic radiation injury should be included with other conditions associated with colitis cystica profunda.