Abstract
We report here a case of hilar breast cancer metastasis identified incidentally during lung resection for lung cancer. The patient had a past history of triple negative breast cancer diagnosed at another hospital. A malignant hilar node was detected, which could not easily be distinguished as metastasis from the lung adenocarcinoma or from the breast cancer. Previous studies have investigated lymphatic flow changes by axillary sentinel lymph node biopsy or dissection. When an unknown lymphadenopathy is detected in a patient with a past history of breast cancer, metastatic breast cancer should be considered.
