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EntityQ1754226· pop 20· linked from 288 articles

Also known as Dilatation of colon, Megacolon NOS (disorder), Megacolon excluding Hirschsprung's disease, Megacolon excluding Hirschsprung's disease (disorder), Megacolon, not Hirschsprung's (disorder), Megacolon, other than Hirschsprung's

Megacolon is an abnormal dilation of the colon (also called the large intestine). This leads to hypertrophy of the colon. The dilation is often accompanied by a paralysis of the peristaltic movements of the bowel. In more extreme cases, the feces consolidate into hard masses inside the colon, called fecalomas (literally, fecal tumor), which can require surgery to be removed.

Key facts

Medical condition (new).name
Megacolon
Medical condition (new).image
Toxic Megacolon in Ulcerative Colitis.jpg
Medical condition (new).caption
Toxic megacolon associated with ulcerative colitis.

via Wikipedia infobox

Research

9,607 papers

via PubMed

~7 min read

Encyclopedic overview

10 sections
Contents
  • Signs and symptoms
  • Cause
  • Aganglionic megacolon
  • Toxic megacolon
  • Chagas disease
  • Diagnosis
  • Treatment
  • See also
  • References
  • External links

Megacolon is an abnormal dilation of the colon (also called the large intestine). This leads to hypertrophy of the colon. The dilation is often accompanied by a paralysis of the peristaltic movements of the bowel. In more extreme cases, the feces consolidate into hard masses inside the colon, called fecalomas (literally, fecal tumor), which can require surgery to be removed.

A human colon is considered abnormally enlarged if it has a diameter greater than in the cecum (it is usually less than ), greater than in the rectosigmoid region and greater than for the ascending colon. The transverse colon is usually less than in diameter.

Excerpted from Wikipedia’s “megacolon” article, available under the CC BY-SA 4.0 licence.