1Eslick GD. Epidemiology of gallbladder cancer. Gastroen- terol Clin North Am 2010; 39:307-330.
2Malhi H, Gores GJ. Cholangiocarcinoma: modem advances in understanding a deadly old disease. J Hepatol 2006; 45: 856-867.
3Yoon MA, Lee JM, Kim SH, Lee JY, Han JK, Choi BI, Kim SW, Jang JJ. Primary biliary lymphoma mimicking cholan- giocarcinoma: a characteristic feature of discrepant CT and direct cholangiography findings. J Korean Med Sci 2009; 24: 956-959.
4Jung JH, Joo KR, Chae MJ, Jang JY, Lee SG, Dong SH, Kim HJ, Kim BH, Chang YW, Lee JI, Chang R, Kim YH, Lee SM. Extrahepatic biliary schwannomas: a case report. J Korean Med Sci 2007; 22:549-552.
5Madhusudhan KS, Srivastava DN, Dash NR, Gupta C, Gupta SD. Case report. Schwannoma of both intrahepatic and extrahepatic bile ducts: a rare case. Br J Radiol 2009; 82: e212-e215.
6Hajdu SI. Peripheral nerve sheath tumors. Histogenesis, classification, and prognosis. Cancer 1993; 72:3549-3552.
7Kulkarni N, Andrews SJ, Rao V, Rajagopal KV. Case report: Benign porta hepatic schwannoma. Indian J Radiol Imaging 2009; 19:213-215.
