Rectum

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The rectum is part of the distal part of the gastrointestinal tract; it is between the sigmoid colon and anus.

Definition

Pathologist generally agree that: the rectum starts/sigmoid ends at the place where serosa ends on the posterior aspect of the bowel (peritoneal reflection).

Note:

  • There are several definitions for the rectum.[1]
    • In a survey of surgeons:[2]
    • 67% defined it by an anatomical landmark
      • 35% of all respondants considered the peritoneal reflection the proximal boundary of the rectum.
    • 30% defined the proximal boundary as a distance from the anal verge.

See also

References

  1. Massalou D, Moszkowicz D, Mariage D, Baqué P, Camuzard O, Bronsard N (April 2018). "Is it possible to give a single definition of the rectosigmoid junction?". Surg Radiol Anat 40 (4): 431–438. doi:10.1007/s00276-017-1954-4. PMID 29218384.
  2. Kenig, J.; Richter, P. (Sep 2013). "Definition of the rectum and level of the peritoneal reflection - still a matter of debate?". Wideochir Inne Tech Maloinwazyjne 8 (3): 183-6. doi:10.5114/wiitm.2011.34205. PMID 24130630.