胃间质瘤(gastric stromal tumor,GST)是指一类既无雪旺细胞免疫组化特点又无平滑肌细胞超微结构的胃非上皮细胞性肿瘤,是最常见的胃间质细胞肿瘤,约占所有胃肿瘤的2%[1]。GST可发生于任何年龄段,多见于50~70岁,儿童较少发生,目前仅有个别关于儿童GST的报道[2]。在性别分布上, Gastric stromal tumor (GST) is a type of gastric non-epithelial tumor characterized by neither immunohistochemical characteristics of Schwann cells nor smooth muscle cells ultrastructure, is the most common gastric stromal tumor, about Accounting for 2% of all gastric tumors [1]. GST can occur at any age, more common in 50 to 70 years of age, children less often, there are only a few reports on children’s GST [2]. In terms of gender distribution,