Abstract
A 78-year-old man with a tumor measuring 6mm in diameter in the left mandibular gingiva was referred to our department. He had a history of renal cell carcinoma and had undergone a right radical nephrectomy. He also had metastatic lesions to the lungs and multiple bones. The tumor was resected under local anesthesia. The surgical specimen showed a renal cell carcinoma that had metastasized from the kidney. Renal cell carcinoma metastasizing to the oral cavity is rare and metastasized tumors of a renal cell carcinoma have a very poor prognosis. He died two months after the operation.
Because metastasized tumors generally have a poor prognosis, it is very important to consider the patient's quality of life when choosing the treatment for them.
