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Murine Ileocolic Bowel Resection with Primary Anastomosis
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Brief Review: Rethinking Colonic Redundancy in Gastroenterology.

Richard Kellermayer1,2,3, Réka G Szigeti4, Xiao Jing Wang5

  • 1Division of Pediatric Gastroenterology, Texas Children's Hospital, Baylor College of Medicine, Houston, TX, USA. kellerma@bcm.edu.

Digestive Diseases and Sciences
|June 5, 2026
PubMed
Summary
This summary is machine-generated.

Dolichocolon (colonic redundancy) is a common but underrecognized condition affecting 10-20% of people. This elongated colon variant may link to constipation and other GI issues, requiring further study.

Keywords:
DGBIConstipationDisorders of the gut brain axisDolichocolonLarge intestine

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Area of Science:

  • Gastroenterology
  • Anatomy
  • Radiology

Background:

  • Dolichocolon (DC), or colonic redundancy, is an elongated and tortuous colon variant.
  • It has been described since 1820 but remains underrecognized in clinical practice.
  • Advances in imaging and motility assessment provide new insights into DC.

Purpose of the Study:

  • To summarize current evidence on the anatomy, epidemiology, and clinical significance of DC.
  • To explore pathophysiological mechanisms linking DC to gastrointestinal disorders.

Main Methods:

  • Targeted literature review of studies from 1900-2024.
  • Searches conducted on PubMed and Scopus using terms like 'dolichocolon' and 'colonic redundancy'.
  • Included publications on anatomy, motility, symptoms, and disease relevance.

Main Results:

  • DC affects an estimated 10-20% of the population.
  • Associated with constipation, volvulus, and potentially inflammatory bowel disease.
  • Mechanisms may involve stasis, ischemia, altered signaling, and immune-microbiota interactions.

Conclusions:

  • Colonic redundancy is a common variant with potentially overlooked clinical implications.
  • Rarely noted in radiology reports, leading to under-recognition.
  • Standardized characterization and prospective studies are needed to clarify its role.