[A long-term surviving case of multiple metastatic liver tumors from rectal cancer treated with microwave coagulation therapy (MCT)].

We experienced a long-term surviving case from excellent control of a multiple metastatic liver tumor from rectal cancer. The patient was a 38-year-old male, and his chief complaint was pain at defecation. The primary lesion was diagnosed as rectal cancer (Rb), and it was histologically found to be well-differentiated adenocarcinoma. The preoperative enhanced CT demonstrated 8 metastatic lesions in bilateral lobes of the liver. Low anterior resection for rectum and open microwave coagulation therapy (MCT) for liver metastasis were synchronously performed. The coagulated areas after MCT revealed no enhancement. The serum CEA levels returned to normal for 9 months. Nine months after the first operation, we detected 6 recurrent lesions in the other sites of the remnant liver. We used second open MCT because the hepatic arterial chemotherapy was ineffective. We performed percutaneous MCT for the next new lesions. The patient was diagnosed with lung metastasis 2 years after the first operation, and died of cancer growth 2 years and 9 months after the first operation. This long-term surviving case of nine metastatic liver tumors achieved adequate quality of life by a combination therapy mainly consisting of MCT.