Abstract
A 54-year-old man was admitted to our hospital because of a liver tumor pointed out at another hospital when he visited for right hypochondralgia. There was a previous history of right hemicolectomy with a diagnosis of ascending colon cancer. Abdominal CT scan demonstrated a giant tumor about 15 cm in diameter in the right lobe of the liver. We performed right hepatic lobectomy with a preoperative diagnosis of metastatic liver tumor or cholangiocarcinoma. Pathological findings of the liver tumor showed the same pathological image as the primary colon cancer. Immunohistochemical study of the both tumor showed similar findings (EMA, CK20 and CEA were positive ; CK7 was negative). Therefore, we diagnosed this as a case of hepatic metastasis. Hepatic metastasis from colon cancer has rarely occurred over 5 years after colectomy of the primary cancer. We report such a rare case of liver metastasis from colon cancer 10 years and 6 months after a colectomy with a review of the literature.
