GIST•1定义•2临床特点和检查手段•3病理学和影像学表现•4药物治疗•5预后定义•主要发生于消化管道含有梭形细胞、非普通型上皮样细胞或含有两种细胞并显示CD117活性的间叶细胞瘤。•胃肠道间叶源性肿瘤（gastrointestinalmesenchymaltumor,GIMT）与GIST概念与所含肿瘤范围不同，GIMT中约73%为GIST，其他GIMT有平滑肌瘤、平滑肌肉瘤、脂肪瘤、神经鞘瘤和胃肠道自主神经肿瘤（gastrointestinalautonomicnervetumor,GANT）等。Historybefore1983:regardedasleiomyomas,leiomyosarcomasorleiomyoblastomas,schwannomas1983:MazurandClark,differGISTsfromsmoothmuscle(immunostainingandelectronmicroscopy)1998:KindblommorphologicalandimmunophenotypicsimilaritiestoICC1998:Hirotagain-of-functionmutationsin...
