A case of breast cancer metastatic to the head of the pancreas

A case of breast cancer that metastasized to the head of the pancreas 6 years and 8 months after mastectomy is reported. The pancreas head metastasis was associated with general fatigue and obstructive jaundice. The serum levels of CEA, CA15-3 and NCC-ST-439, tumor markers of breast cancer, were within normal limits, but CA15-3 was immunohistochemically demonstrated in the resected metastatic lesion, in a manner similar to lobular carcinoma of the breast.