胃间质瘤(Gastric Stromal Tumor,GST)是一种具有恶性潜能的非定向分化的消化道间叶性肿瘤,过去受病理技术手段的限制,曾被误诊为平滑肌或神经源性肿瘤。近来随着免疫组化开展,判定GSTs可能源自中胚层的卡哈尔间质细胞(Interstitial cell of Cajal,ICC)[1],这些肿瘤绝大部分较 Gastric Stromal Tumor (GST) is a malignant potential non-directional differentiation of mesenchymal tumor, which was previously limited by pathological techniques and was misdiagnosed as a smooth muscle or neurogenic tumor. Recently, with the development of immunohistochemistry, GSTs may be derived from mesodermal Interstitial cell of Cajal (ICC) [1]. Most of these tumors are