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Related Experiment Videos

Accessory arteries supplying the human transverse colon.

M Koizumi1, M Horiguchi

  • 1Department of Anatomy, Iwate Medical University School of Medicine, Morioka, Japan.

Acta Anatomica
|January 1, 1990
PubMed
Summary

A new artery, the superior left colic artery (CSS), was identified in nearly half of subjects, originating from the superior mesenteric artery. This finding offers new insights into colic artery anatomy and potential variations.

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Area of Science:

  • Anatomy
  • Vascular Anatomy
  • Surgical Anatomy

Background:

  • Anatomical variations in colic arteries can impact surgical procedures.
  • The superior left colic artery (CSS) is a newly described vascular structure.

Purpose of the Study:

  • To describe the morphology and prevalence of a newly identified accessory colic artery.
  • To propose the nomenclature 'superior left colic artery (arteria colica sinistra superior; CSS)' for this structure.

Main Methods:

  • Detailed anatomical observation during dissection.
  • Morphological analysis of the accessory colic artery and its origin.

Main Results:

  • An accessory colic artery was observed in 49.2% of subjects (32/65).
  • This artery originated proximally from the superior mesenteric artery and anastomosed with the marginal artery at the splenic flexure.
  • A potential link between the CSS and an unusual middle colic artery originating from the celiac trunk was hypothesized.

Conclusions:

  • The superior left colic artery (CSS) is a distinct anatomical entity with consistent features.
  • Understanding the CSS is crucial for accurate surgical planning in abdominal procedures.
  • Further research is needed to fully elucidate the clinical significance of the CSS.

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