2017 Volume 66 Issue 2 Pages 129-134
The patient was a 68-year-old man who was underwent laparoscopic resection with D2 lymph node dissection for the early sigmoid colon cancer（Ⅱa+Ⅱc type）in December 2007.
The pathological diagnosis was moderate-differentiated adenocarcinoma with invasion to submucosa（SM），slight lymphatic invasion（ly1）and no venous invasion（v0）in the colonic wall and no lymphoid metastases（n0），which were categorized in curative A resection.
In February 2016, an abdominal ultra-sonography detected multiple tumorous lesions of the liver. As pathological examinations of percutaneous liver biopsy demonstrated the same pathological image as the primary sigmoid colon cancer, they were diagnosed as hepatic metastases. Six courses of bevacizumab and SOX were administered and these lesions disappeared. After that, S-1 only was performed for this patient and his disease remained stable and no new metastasis has occurred. Rarely but liver metastases from the SM colon cancer can occur. So it is necessary to accumulate more cases to elucidate the risk factors for recurrence and establish a surveillance system.