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  • Title: Aberrant anterior branch of segment V traveling ventrally across the gallbladder: a case of critical anatomy.
    Author: Yamazaki S, Takayama T, Yoshida N, Mitsuka Y, Yan M, Arima H, Higaki T.
    Journal: Surg Radiol Anat; 2020 Dec; 42(12):1479-1481. PubMed ID: 32816069.
    Abstract:
    This paper presents a case of critical anatomic variation in laparoscopic cholecystectomy, as an anterior segmental branch of segment V from the left hepatic artery passing anterior to the fundus of the gallbladder and coursing to the anterior hepatic segment. A 46-year-old man was admitted to our hospital complaining of hypochondralgia attributed to gallbladder stones. An aberrant artery crossed the ventral side of the neck of the gallbladder and ran into the right liver Glissonean sheath of segment V. During laparoscopic cholecystectomy, this artery was taped and exposed from proximal to distal ends, revealing an origin from the left hepatic artery with the vessel acting as the anterior branch of segment V to the liver. The cystic artery branching from the aberrant artery was found on the left side of the gallbladder. Laparoscopic cholecystectomy was performed with no injury to the hepatic arteries and the patient was discharged 3 days postoperatively. In general laparoscopic cholecystectomy, we expose only the area inside Calot's triangle. With such an approach, this type of aberrant hepatic artery may be injured intraoperatively without consequences. Detailed preoperative evaluation using modalities such as 3-dimensional reconstruction of CT and knowledge of variations in the hepatic artery will help avoid vessel injury.
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