A CASE OF MAMMARY GLAND METASTASIS OF PANCREATIC CANCER

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We experienced a case of mammary gland metastasis of pancreatic cancer.A 72-year-old woman was seen at the hospital because of a right breast mass in February 2002. She had been suffering from epigastric discomfort and back pain since November 2001. On physical examination, an irregular shaped, clearly demarcated and elastic-hard mass with the diameter of 1.2cm was found in the upper outer quadrant of right breast. On mammography and ultrasonography, it was consistent with breast cancer. Fine needle aspiration biopsy cytology revealed adenocarcinoma. Preoperative abdominal ultrasonography and CT scan revealed a hepatic mass with the diameter of 4.5cm, a tumor of the pancreas body and tail with the diameter of 5cm and paraaortic lymph node metastasis. CA19-9 showed high score (2683U/ml). Therefore, pancreas cancer was considered to be the primary site for the breast tumor and chemotherapy was started for pancreatic cancer. However, upper gastrointestinal stenosis developed, and gastrojejunostomy was carried out. Concurrently, partial resection of the right breast was performed. The histological diagnosis was metastatic pancreatic cancer of the breast. Since metastasis to the mammary gland from other organ malignancy, especially from pancreatic carcinoma, is rare, this case is presented here.
日本臨床外科学会の論文