[A case of multiple metachronous metastases of colon cancer to the small intestine preoperatively diagnosed by double balloon enteroscopy and radically resected].

The patient was a 75-year-old woman who had undergone resection of a transverse colon cancer two years before. She had anemia and intestinal obstruction, and a diagnosis of multiple metastases to the small intestine was made by double balloon enteroscopy. Eleven metastatic foci were resected by partial resection of the jejunum and ileum. Adjuvant FOLFOX chemotherapy was given, achieving a 26-month disease-free survival. The double balloon enteroscopy was useful in the definitive diagnosis of this case, and aggressive resection with adjuvant chemotherapy contributed to the good outcome.