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  • A CASE OF BREAST CANCER METASTASIZED TO THE ASCENDING COLON

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This is a case report of a metastatic ascending colon cancer after radical operation for a breast cancer.<br>A 56-year-old woman was admitted to the hospital because of right lower abdominal pain in July 1991. There was a history of undergoing standard radical mastectomy for a left breast cancer on August 1983. On October 1 1991 emergency operation was performed under a diagnosis of ileus. During operation a tumor 3 cm in diameter was found in the ascending colon which presented with whole-circumference stricture.<br>Histological findings of the breast cancer resected in 1983 revealed a solid tubular carcinoma partially included scirrhous carcinoma, and histological structure of this tumor in the ascending colon was similar to that of the breast cancer. The tumor of the ascending colon was diagnosed as a metastatic lesion from the breast cancer.<br>It is rare that intestinal metastases from breast cancers are found when patients are alive. Especially metastases to the colon and rectum are rare and 27 cases have been reported in the world. The age when metastases were found is 56 years old in average, and a disease-free interval after operations for breast cancers is about 7 years. The appendix is the most common metastatic site from breast cancer, and histologically lobular carcinomas are predominant.

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