[A Case of RFA for Liver Metastasis after Resection for Rectal Cancer in a 102-Year-Old Man].

A 100-year-old man was admitted to our hospital because of bloody stool. Colonoscopy revealed a type-2 tumor in the rectum, which was diagnosed as moderately differentiated adenocarcinoma. There was no distant metastasis on CT. After meticulous preoperative evaluation of surgical risks considering his age, laparoscopic high anterior resection was performed. During surgery, the edge of the descending colon showed ischemia; therefore, we performed conversion to open surgery and transverse colon resection. However, the edge of the transverse colon showed ischemia; therefore, ascending colon resection and ascending colon-rectum anastomosis were performed. On day 5 after surgery, the patient developed aspiration pneumonia, for which respirator management was conducted. As his condition improved, he was discharged on postoperative day 32. The pathology results were tub2, pT3, ly0, v2, PM0, DM0, RM0, pN1, Stage Ⅲa. One year 6 months after the surgery, when the patient was 102 years old, CT revealed liver metastasis. RFA was performed for the liver lesion. In people aged 100 years or older, few reports are available on colectomy, and there is no report of treatment for metastasis.