Colon non tumor
Non-neoplastic, non-congenital lesions

Author: Raul S. Gonzalez, M.D. (see Authors page)

Revised: 5 January 2017, last major update November 2013

Copyright: (c) 2003-2017,, Inc.

PubMed Search: volvulus colon
Cite this page: Volvulus. website. Accessed October 22nd, 2018.
Definition / general
  • Complete twisting of loop of bowel around its mesenteric base of attachment, causing obstruction and infarction
  • Also called torsion (volvulus is a more specific term referring to gastrointestinal torsion)
  • Potentially due to adhesions from prior surgery
Clinical features
  • More common in men
  • Patients typically demonstrate abdominal pain, distension, hyperactive bowel sounds
  • High rate of mortality, particularly in older patients (Eur Rev Med Pharmacol Sci 2013;17:127)
Radiology description
  • Dilated loops of intestine
  • Volvulus may be visible on CT
Case reports
  • 16 year old boy with sigmoid volvulus with an associated anomalous congenital band (Am Surg 2013;79:1140)
Clinical images

Images hosted on other servers:

Volvulus as seen on CT

Gross description
Microscopic (histologic) description
  • Colon may be ischemic or gangrenous