胃肠道间质瘤(GIST)是起源于胃肠道肌层的间叶性肿瘤。GIST在人群中的发病率极低,约为(1~2)/10万人,占胃肠道肿瘤的1%~4%。过去对GIST的组织发生、生物学行为以及肿瘤的恶性程度的认识都不十分明确,这就给诊治带来了很多的不便,甚至误诊。近年来,GIST成为消化道临床病理学的研究热点。现将我科曾收治的1例GIST作一小结,报道如下。 Gastrointestinal stromal tumors (GISTs) are mesenchymal tumors that originate in the gastrointestinal muscularis. The incidence of GIST in the population is very low, about (1 ~ 2) / 10 million, accounting for 1% to 4% of gastrointestinal tumors. In the past, the awareness of the occurrence of tissue, biological behavior and malignant degree of GIST was not very clear, which brought a lot of inconvenience to the diagnosis and treatment or even misdiagnosis. In recent years, GIST has become a hot spot in clinical pathology of the digestive tract. Now I have a section treated GIST made a summary of the report is as follows.