Laparoscopic Anatomical Left Hepatectomy for Intrahepatic Bile Duct Papillary Mucinous Cystadenoma With Intraoperative Vascular Repair: A Case Report

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Laparoscopic hepatectomy has been widely performed for patients with benign liver tumors such as hepatic hemangioma, focal nodular hyperplasia, and hepatic adenoma.We here present a case of a 78-year-old female patient who was initially admitted to our department due to fever and jaundice for 2 days. Abdominal enhanced computed tomography scan showed intrahepatic and extrahepatic bile duct dilatation with liver atrophy of left lobe. Unenhanced nodules were seen within the left intrahepatic bile duct. Ultrasonography revealed intrahepatic and extrahepatic bile duct dilatation with viscous fluid, tubular adenoma? Tumor markers including alpha fetoprotein, carcinoembryonic antigen, and CA19-9 were normal. Preoperative total bilirubin was 64.4 mmol/L.Laparoscopic anatomical left hepatectomy and common bile duct exploration were performed. In this procedure, a lot of mucus was seen within the common bile duct and left intrahepatic bile duct. No bile duct stones were found after the exploration. During parenchymal transection, intraoperative hemorrhage from middle hepatic vein was met, and we repaired middle hepatic vein by laparoscopic suture (5-0 Prolene). No air embolism and hypotension were met. This operation took 232 minutes and estimated blood loss was 300 mL. Postoperative ultrasonography indicated a normal outflow of middle hepatic vein and there was no stricture. The patient's postoperative course was uneventful and was discharged on the 6th day after surgery. Postoperative pathological diagnosis was intrahepatic bile duct papillary mucinous cystadenoma.

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