[A Case of Small Intestinal Gastrointestinal Stromal Tumor(GIST)with Synchronous Colonic Cancer and Gastric Cancer at a Different Time].

The patient was a 70-year-old woman with a gastrointestinalstromaltumor (GIST)of the small intestine and synchronous colonic cancer, who underwent laparoscopic right colectomy and resection of the small intestine. We started imatinib therapy because GIST belongs to a high-risk group, according to the modified Fletcher classification. Gastric cancer was diagnosed 2 years after the start of imatinib therapy.