Patients
ampullary tumors, congenital anomalies, hepatolithiasis, choledocholithiasis
MIRIZZI SYNDROME, AMPULLARY TUMOR, CHOLEDOCHOLITHIASIS
We collected medical records of patients who were diagnosed with choledocholithiasis with or without hepatolithiasis and underwent laparoscopic surgery from January 2015 to September 2020 at the First Affiliated Hospital of Wenzhou Medical University. The exclusion criteria were as follows: (1) lack of preoperative clinical data, (2) intraoperative or postoperative diagnosis of gallbladder, bile duct, and ampullary tumors, (3) congenital anomalies of the hepatobiliary system, (4) Mirizzi Syndrome.The First Affiliated Hospital of Wenzhou Medical University’s Ethics Committee approved this study (No.:Y(2022).R194). Due to the retrospective nature of this study and the anonymized data of all patients, the Ethics Committee of the First Affiliated Hospital of Wenzhou Medical University waived the requirement for informed consent.