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Modified Hinchey Classification of Diverticulitis
| Class | CT Findings |
|---|---|
| Stage 0 | Mild clinical diverticulitis |
| Stage Ia | Confined pericolic inflammation/phlegmon |
| Stage Ib | Confined pericolic abscess (within sigmoid mesocolon) |
| Stage II | Pelvic, distant intra-abdominal or intraperitoneal abscess |
| Stage III | Generalized purulent peritonitis |
| Stage IV | Fecal peritonitis |
