The case is a 67-year-old female who was treated with low anterior resection for rectal cancer in April 1998. Two years later, metastasis to lung was diagnosed and we performed left upper lobectomy. In another three years after the treatment, tracheal tumor was found. We diagnosed it was metastasis of past rectal cancer because the histological findings were similar to metastasis of past rectal cancer to lung. We performed microwave tissue coagulation (MTC) to the tracheal metastasis. The tumor was easily cauterized and removed. Two years have passed after the latest treatment and the tracheal metastasis of carcinoma has been favorably controlled. We concluded that microwave coagulation therapy (MCT) was a very effective method as a partial treatment for metastatic tracheal tumor.
