Table 2 CT-based classification system of parastomal hernias. Note: size of the hernia sac differs from that of the abdominal wall defect in EHS clinical classification (Table 1)
From: A closer look at the stoma: multimodal imaging of patients with ileostomies and colostomies
CT Type | Description |
|---|---|
0 | Peritoneum follows the wall of the bowel forming the stoma, without sac formation |
Ia | Hernia containing bowel loop forming the colostomy with sac < 5 cm |
Ib | Hernia containing bowel loop forming the colostomy with sac < 5 cm |
II | Hernia containing omentum |
III | Hernia containing other intestinal loop than the bowel forming the stoma |