Abstract
In an aged human female cadaver a left accessory aberrant colic artery (LAACA) was observed and studied. It originated from the superior mesenteric artery at 3 cm proximal to the middle colic artery, at the inferior border of pancreas, passing over Treitz's muscle and continued covered by the superior duodenal fold where it crossed the inferior mesenteric vein. Further, it continued with a satellite vein anterior to the left renal vein and the anterior branch of the renal artery. The LAACA divided into an ascending branch and a descending one, anastomosed with the middle colic and proper left colic arteries; between its two primary branches and the splenic flexure of colon, a hypovascular area was observed. The surgical relevance of the LAACA detailed anatomy mainly relates to specific procedures performed in left colectomies and nephrectomies.
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