Colon
Noninfectious colitis
Hemorrhagic colitis


Topic Completed: 1 May 2013

Minor changes: 30 September 2020

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PubMed Search: hemorrhagic colitis[title]

Hanni Gulwani, M.B.B.S.
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Cite this page: Gulwani H. Hemorrhagic colitis. PathologyOutlines.com website. https://www.pathologyoutlines.com/topic/colonhemorrhagic.html. Accessed April 19th, 2021.
Definition / general
  • Abdominal cramping, bloody diarrhea, low grade or no fever
  • Usually resolves spontaneously, but may be complicated by hemolytic uremic syndrome or thrombotic thrombocytopenic purpura
Etiology
Clinical features
  • Endoscopy: right sided colonic edema, erosions, hemorrhage
Microscopic (histologic) description
  • Hemorrhage and edema in lamina propria; focal superficial mucosal necrosis with preservation of deeper portion of crypts; acute inflammation; may have inflammatory pseudomembranes
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