Fatemeh Zahedi and Hoda Mahdavi
The breast is a rare site of metastasis from cancers that seldom occurs late in the natural history of a malignancy. It causes a diagnostic challenge when it is an early presentation of cancer. Here, we report a case with an incidental breast mass. Further evaluation of the histology revealed a contralateral lung adenocarcinoma. The metastatic deposit of the breast responded well to systemic therapy and therefore the patient was selected for aggressive local therapy of the primary site. The aim of the present study is to report a rare case of metastatic lung adenocarcinoma with limited metastasis that was diagnosed as a non-primary breast neoplasm and was treated with chemotherapy, surgery, and consolidative radiotherapy with a curative intent.