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Double hepatomesenteric artery: a rare anatomical variant
N Hentati1, A Pasco, H D Fournier
1Laboratoire d'Anatomie, Faculté de médecine, rue Haute de Reculée, F-49045 Angers, France.
Surgical and Radiologic Anatomy : SRA
|November 7, 2001
Summary
A rare "double hepatomesenteric artery" variant was found, with two hepatic arteries originating from the superior mesenteric artery. This anatomical variation, along with atypical pancreaticoduodenal arteries, has significant clinical and surgical implications.
Area of Science:
- Anatomical variations
- Vascular anatomy
- Human embryology
Background:
- Anatomical variations in the hepatic and mesenteric arteries are uncommon.
- Understanding these variations is crucial for surgical and interventional procedures.
- The superior mesenteric artery typically supplies the intestines, but its branching patterns can vary.
Purpose of the Study:
- To report a previously undescribed "double hepatomesenteric artery" anatomical variant.
- To discuss the embryological basis for this vascular anomaly.
- To explore the clinical, radiological, and surgical significance of this finding.
Main Methods:
- Detailed dissection of the duodenal bulb vasculature in a preserved male cadaver.
- Injection of the vascular system with neoprene latex for enhanced visualization.
- Comparative analysis with existing anatomical literature.
Main Results:
- Identification of a "double hepatomesenteric artery" with two hepatic arteries originating from the superior mesenteric artery.
- Observation of a lack of systematisation in the pancreaticoduodenal arteries.
- This specific combination of variations appears to be novel in the literature.
Conclusions:
- The reported "double hepatomesenteric artery" represents a rare congenital anomaly.
- This anatomical variation necessitates careful consideration in diagnostic imaging and surgical planning.
- Further research into the embryological development and clinical impact of such arterial variations is warranted.