Abstract
We report a rare case of a patient with a hypopharyngeal metastasis from breast cancer. A 56-year-old woman had undergone mastectomy with axillary lymph node dissection for left breast cancer at 32 years of age. She received tamoxifen for 2 years after the surgery. Lung metastasis from the breast cancer was found when the patient was 42 years old, and resection of the upper lobe of the right lung was performed with lymph node dissection. More than 10 years after the lung resection, when the patient was 56 years old, she was referred to our hospital complaining of dyspnea. Laryngoscopy revealed bilateral vocal cord paralysis and a tumor in the hypopharynx, therefore, a tracheotomy was performed, along with biopsy of the tumor. Based on the biopsy findings, the patient was diagnosed as having hypopharyngeal metastasis from breast cancer (ER-positive, PR-positive, HER2-negative). The hypopharyngeal tumor reduced in size with oral aromatase inhibitor therapy.