A Case of Early Carcinoma of the Sigmoid Colon Metastasizing to the Liver.

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Early carcinoma of the large bowel rarely metastasizes to the liver. Recently, the author has experienced a patient who had early carcinoma of the sigmoid colon metastasizing to the liver six months after sigmoidectomy. The patient was a 78-year-old female with positive occult stool. Colonoscopy detected a is-type protruding lesion in the sigmoid colon. Histological examination of the tumor tissue revealed carcinoma. Sigmoidectomy was performed, and the tumor was histologically diagnosed as submucosal carcinoma with lymphatic invasion. At six months after sigmoidectomy, CT scanning demonstrated multiple liver metastasis. She died of liver metastasis two years after sigmoidectomy. This case suggests that CT scanning and ultrasonography of the liver are necessary in patients with submucosal carcinoma of the large bowel.
日本大腸肛門病学会の論文