Toxic megacolon

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Toxic megacolon is a marked acute dilation of the colon. It is classically associated with ulcerative colitis.


It may be seen in:


  • Dilated colon.
  • Eroded mucosa.
  • +/-Pseudomembranes.


See also


  1. Kobayasi, S.; Mendes, EF.; Rodrigues, MA.; Franco, MF. (Nov 1992). "Toxic dilatation of the colon in Chagas' disease.". Br J Surg 79 (11): 1202-3. PMID 1467905.
  2. Seltman, AK. (Dec 2012). "Surgical Management of Clostridium difficile Colitis.". Clin Colon Rectal Surg 25 (4): 204-9. doi:10.1055/s-0032-1329390. PMID 24294121.