[A Vesected Case of Pancreatic Metastasis from Breast Cancer Which Recurred Six Years after Breast Surgery].

A 43-year-old woman who underwent surgical resection of invasive ductal carcinoma in the left breast at the age of 37 years old presented at our hospital for evaluation of pancreatic tumor. The original tumor was estrogen receptor(ER)progesterone receptor(PgR)and HER2 positive. At that time, she underwent radical mastectomy with no evident nodal disease. Postoperatively, the patient was placed on adjuvant tamoxifen therapy for several years. Six years following the original diagnosis of breast cancer, she was referred to the hospital for routine check-up while asymptomatic. Follow-up examination showed a solitary hypodense mass approximately 0.9 cm in size in the pancreas body on dynamic CT scan. The patient underwent a standard distal pancreatectomy with standard regional lymphadenectomy. Histopathological examination and immunohistochemical features revealed that the tumor was compatible with metastatic pancreatic adenocarcinoma from breast cancer.