Abstract
We report a case of early SM colon cancer with synchronous hepatic metastases. A 71-year-old man had undergone endoscopic resection for a Type 0-I sp polyp of the sigmoid colon. The pathological diagnosis was a poorly differentiated adenocarcinoma invaded to the submucosal layer accompanied with lymphatic and venous infiltration. The vertical cut margin was positive. Abdominal CT showed a 4.0 cm tumor at the S7 segment and another 1.6 cm at S5 of the liver. Needle biopsy indicated colonic adenocarcinoma metastasis. He had a sigmoid colon resection, hepatic posterior segmentectomy and partial hepatectomy of the S5 segment. The histological examination found lymph node metastasis but no residual cancer in the sigmoid colon, and histological diagnosis of the liver was two lesions of moderately differentiated tubular adenocarcinoma. He has remained tumor-free in the 97 months after hepatic resection. We consider this case to be rare and report the case together with a review of the literature.
