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胃肠间质瘤(gastrointestinal stromal tumor,GIST)是消化道最常见的间叶组织来源肿瘤,起源于Cajal细胞,主要发生部位是胃和小肠,其次可见于直肠、结肠及食管。对于可切除的原发性GIST,手术治疗是首选,然后根据肿瘤的危险度分级、基因类型等推荐辅助治疗及治疗时限,但是在辅助治疗停药1~2年后仍有患者出现了复发或转移。然而约有15%~50%的GIST患者在初诊时已经伴有
Gastrointestinal stromal tumor (GIST) is the most common type of mesenchymal tumor in the digestive tract. It originated in Cajal cells. The main site of the gastrointestinal stromal tumor (GIST) is the stomach and small intestine. The second most common is in the rectum, colon and esophagus. For resectable primary GIST, surgical treatment is the first choice, and then according to the risk of tumor grade, genotype, etc. recommended adjuvant therapy and treatment time limit, but in adjuvant therapy for 1 to 2 years after the withdrawal of patients still had recurrence or Transfer. However, about 15% to 50% of GIST patients are already present at the time of first visit