Common Bile Duct Schwannoma Associated with a Choledochal Cyst

摘要

Myelin sheath tumors are neurogenic tumors which include schwannoma, neurofibroma, neurofibromatosis and neurogenic sarcoma. They are most commonly present during middle age and 90% are benign. It has been reported that, they are twice as common in women as in men, but there are few reports of neurogenic tumors in the biliary tract and fewer than 10 cases of schwannoma of the extrabiliary tract.