Abstract
The patient was a 76-year-old man who had been aware of a right axillary subcutaneous tumor since 40 years earlier. In May 2010, the tumor rapidly enlarged and formed ulcer. A biopsy of the lesion provided a diagnosis of invasive ductal carcinoma. He was referred to our department with a suspicion of male breast cancer. A CT scan showed swelling of the ipsilateral axillary and mediastinal lymph nodes. Any findings suggestive of metastasis from other organs were absent. In June 2010, we performed excision of the right axillary tumor, axillary lymph node dissection and reconstruction using a scapular flap. Histopathology confirmed malignant findings of proper mammary gland and discontinuing normal mammary tissue. Immunohistology revealed ER (-), PgR (-), and HER2 (3+). In October 2011 when the patient was under adjuvant chemotherapy, a nodule shadow appeared in the right lung and partial pneumonectomy was performed. The pathological diagnosis was metastatic breast cancer. In July 2013, multiple lung metastases appeared and the patient has been treated with chemotherapy. At present when 4 years and 5 months have elapsed after the operation, the patient can maintain the same activity of daily living (ADL) as he had before surgery due to the reconstruction.
