Fig. 7From: A case of intraductal papillary neoplasm of the bile duct that developed 38 years after choledochoduodenostomy with invasive adenocarcinoma and lymph node metastasisImmunohistochemistry. Immunohistochemistry revealed that CK7, CK19, and MUC5AC are positive in the papillary region.CK20, MUC2, and MUC6 are negativeBack to article page