Modified Hinchey Classification: Diverticulitis

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Colonic reaction with inflammatory reaction in the pericolic fat

Localized pericolic or mesenteric abscess

Intra-abdominal, pelvic, or retroperitoneal abscess Signup and view all the answers

Perforated diverticulitis causing generalized purulent peritonitis Signup and view all the answers

Rupture of diverticula into the peritoneal cavity with generalized fecal peritonitis Signup and view all the answers

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Stage 0: Characterized by mild diverticulitis or colonic thickening visible on CT scans; presents as uncomplicated.
Stage 1a: Involves a colonic reaction with an inflammatory response localized in the pericolic fat; also considered uncomplicated.
Stage 1b: Defined by the presence of a localized abscess either in the pericolic or mesenteric areas; categorized as complicated.
Stage 2: Involves the formation of intra-abdominal, pelvic, or retroperitoneal abscesses; classified under complicated diverticulitis.
Stage 3: Indicates perforated diverticulitis leading to generalized purulent peritonitis; recognized as a complicated stage.
Stage 4: Describes the rupture of diverticula into the peritoneal cavity, resulting in widespread fecal peritonitis.