Table 1 cyst types
From: Giant colonic pseudo-diverticula importance of, and aids to radiological diagnosis: a case series
Type I | Pseudodiverticulum (pre-existing pulsion diverticulum) | Composed of granulation tissue and fibrous tissue, with chronic inflammatory cells and remnants of muscularis mucosa |
Type II | Inflammatory diverticulum | Arises from local perforation and communicates with an abscess cavity. Wall is scar tissue only, no normal intestinal layers |
Type III | True diverticulum | Contains all the layers of bowel wall |