Radiographic appearances in Crohn's disease. III. Colonic lesions following surgery.

Posteroperative films of 114 patients subjected to a primary operation for Crohn's disease were reviewed with special regard to postoperative lesions in the colon. Recurrence in the colon was in 13 patients of 16 due to an exacerbation of the disease in segments left behind at operation. Recurrence in the new distal ileum in addition to persistent colonic disease occurred in 11 patients of 12. This was probably due to the operative connection of the ileum to a diseased colon.