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The common hepatic artery arising from the left gastric artery

Yoshitaka Okada1, Naoko Nishi, Yuka Matsuo

  • 1Department of Radiology, Saitama Medical University International Medical Center, 1397-1 Yamane, Hidaka, Saitama, 350-1298, Japan. okada_y@saitama-med.ac.jp

Surgical and Radiologic Anatomy : SRA
|April 8, 2010
PubMed

Insights

This study details a rare arterial variation where the common hepatic artery originates from the left gastric artery. This anatomical anomaly, observed in three patients via CT imaging, is infrequently documented in medical literature.

Area of Science:

  • Vascular anatomy
  • Surgical anatomy
  • Medical imaging

Background:

  • Anatomical variations of the hepatic artery are crucial for surgical planning and understanding potential complications.
  • The common hepatic artery (CHA) typically arises from the celiac trunk.
  • Variations in the origin of the CHA can impact blood supply to the liver and surrounding organs.

Observation:

  • Three cases of a rare anatomical variation involving the common hepatic artery (CHA) originating from the left gastric artery were identified.
  • Multidetector-row computed tomography (MDCT) with 3D reformation was used to visualize the arterial anatomy in detail.
  • The aberrant CHA originated from the left gastric artery, traversed the lesser omentum, and supplied the left, middle, and right hepatic arteries.

Findings:

  • The common hepatic artery (CHA) arose exceptionally from the left gastric artery in all three cases.
  • No alternative arterial supply to the liver was observed in these patients.
  • The gastroduodenal artery exhibited variable origins, arising from the CHA, splenic artery, or both.
  • The splenic artery and superior mesenteric artery showed no variations.

Implications:

  • This rare CHA variation necessitates careful preoperative assessment in hepatobiliary and upper gastrointestinal surgeries.
  • Awareness of this anomaly is vital for interventional radiologists and surgeons to prevent inadvertent vascular injury.
  • Further documentation of such variations contributes to a comprehensive understanding of splanchnic arterial anatomy.

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