2019 Volume 94 Issue 1 Pages 107-108
A 70-year-old woman presented to our hospital with a liver tumor, which was suspected as a liver metastasis on enhanced CT. Colonoscopy revealed an elevated lesion, 6 mm in diameter, at the transverse colon. We endoscopically diagnosed the lesion as invasive cancer. However, since the lesion was small, we performed EMR for diagnostic therapeutic purposes. Pathological examination revealed a well-differentiated adenocarcinoma invading the submucosa and lymphatic invasion. Therefore, additional surgical resection with lymph node dissection and partial hepatectomy was performed. Histological examination of the liver tumor revealed a well-to-moderately differentiated adenocarcinoma, similar to the primary colonic carcinoma. The hepatic lesion was also immunohistochemically consistent with the primary colonic carcinoma. We finally diagnosed this case as colonic cancer with liver metastasis. We consider this case valuable because of its rarity.
