Pathologic Function
megacolon
Subclass of:
Colonic Diseases
Etymology:
Greek megas = large + kolon = the big bowel
Employed to denote a pathologic enlargement of the colon.
Definitions related to megacolon:
  • An abnormal dilation of the colon not due to obstruction.
    NCI
    U.S. National Cancer Institute, 2021
  • Dilatation of the COLON, often to alarming dimensions. There are various types of megacolon including congenital megacolon in HIRSCHSPRUNG DISEASE, idiopathic megacolon in CONSTIPATION, and TOXIC MEGACOLON.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.