Periampullary carcinoma and congenital common bile duct cyst in situs inversus totalis

Introduction: Situs inversus is a rare congenital anomaly, its incidence is 1/25–80.000. Situs inversus totalis (SIT) is just a fraction of all cases. The incidence of congenital common bile duct cyst regarded as an obligate precancerous lesion given as 1/100.000–150.000. Less than ten periampullar malignant cases with SIT complication were reported between 1936–2006, only two of them were proved to be of Vater papilla origin. Case report: We report a case of a 74-year-old male of known SIT anatomy. One year before his current hospitalization CT-cholangiography and ERCP examination proved a Vater papilla strictu…