ABSTRACT
Different radiological methods can be used for visualization of cystic duct and its variations. It can be optimally and directly visualized with cholangiography. Unrecognized abnormality of the biliary aparatus may cause confusion on imaging studies and complicate subsequent surgical treatment. Malignancy or inflammatory processes can be secondarily involving the cystic duct. The cystic duct may be primarily involved by calculous disease, neoplasia, fistula, biliary obstruction and sclerosing cholangitis. If a portion of cystic duct is left behind during cholecystectomy many complications may be seen postoperatively. These complications include leakage and stones in cystic duct. Redundant cystic duct, impacted cystic duct stone or a tortuous cystic duct may confuse with a mass or tumor. So accurate diagnosis can familiarize the physicians and surgeon with the imaging appearance of anatomical variation of cystic duct and its related disease processes.