Figure 18‐1.
Diagrammatic representation of classification system for diverticular abscesses in which the cylinders represent the colon, the circles an abscess, and the arrows perforation. A Hinchey stage I: localized pericolic or mesenteric abscess. B Hinchey stage II: confined pelvic abscess. C Hinchey stage III: generalized purulent peritonitis resulting from perforation of an abscess. D Hinchey stage IV: generalized fecal peritonitis secondary to free colonic perforation.