1061have been several reports
[4][5][6]
[7][8][9][10][11][12][13][14][15][16][17] on intraductal metastasis from extrabiliary malignant tumors. According to the previous articles, common primary tumors that metastasize to the bile ducts are those of the lung, breast, gallbladder, colon, testis, prostate, and pancreas and melanoma and lymphoma [18].
There have been sporadic reports [4,5,9,10] on the radiologic findings of intraductal metastasis.