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研究发现,胃肠道间质瘤(gastrointestinal stromal tumors,GIST)是一种间叶源性肿瘤,主要起源于胃肠道间质干细胞-Cajal细胞,大部分胃肠道间质瘤发生于胃和小肠。胃肠间质瘤均有一定的潜在恶性,早期即可发生远处转移,常见的转移部位为肝脏转移及腹腔种植转移,故尽早明确诊断对于改善预后显得至关重要。随着超声内镜的普及,胃肠道间质瘤的检出率大大提高。超声内镜用于诊断胃肠道间质瘤的主要优势在于其采用了高频探头,图像分辨力更高,并可将超声探头深入到消化道腔内进行扫描,从而减少了干扰的发生,术前诊断率较高,故有非常重要的诊断价值。
The study found that gastrointestinal stromal tumors (gastrointestinal stromal tumors, GIST) is a mesenchymal tumor, mainly originated in gastrointestinal stromal stem cells - Cajal cells, most of gastrointestinal stromal tumors occur in the stomach and Small intestine. Gastrointestinal stromal tumors have some potential malignancy, distant metastasis can occur early, the common site of metastasis and metastatic liver metastasis, so as soon as possible to confirm the diagnosis of clear prognosis is crucial. With the popularity of endoscopic ultrasound, the detection rate of gastrointestinal stromal tumors greatly increased. Ultrasound endoscopy for the diagnosis of gastrointestinal stromal tumors the main advantage is that it uses a high-frequency probe, higher image resolution, and the ultrasound probe can be deep into the digestive tract to scan, thus reducing the occurrence of interference, Preoperative diagnosis rate is high, so there is a very important diagnostic value.