超声内镜诊断上消化道间质瘤的评价

目的评价超声内镜(endoscopicultrasonography,EUS)诊断胃肠道间质瘤(gastrointestinalstro-maltumors,GIST)的临床价值。方法回顾分析25例GIST的临床表现和EUS特征。结果25例患者中,18例直径小于3cm的GIST边缘规整,呈低回声匀质肿块,符合良性肿瘤特征,另外7例直径大于3cm的GIST中,5例患者的EUS图像呈不均匀声像伴无回声区,其中3例患者出现上消化道出血,另外2例直径为9cm和12cm者边缘不规整,4例内镜下黏膜表面呈溃疡样病变,所有7例患者术后病理和免疫组化均证实为GIST,2例为恶性肿瘤。结论EUS对GIST的诊断很有帮助,并提供临床医师确定下一步处理。

Endoscopic Ultrasonographic Evaluation of Upper Gastrointestinal Stromal Tumors

Objective To evaluate the clinical diagnostic value of endoscopic ultrasonography (EUS) on gastrointestinal stromal tumors (GIST).Methods The clinical presentation and typical EUS features of 25 patients with GIST were reviewed retrospectively.Results In 25 patients,there were 18 patients whose tumors were less than 3 cm in diameter,homogeneous and hypoechoic in appearance with regular borders,concordant with benign tumors.In another 7 patients whose tumors were larger than 3 cm in diameter,there were 5 patients whose lesions had heterogeneous echoic appearance with anechoic spaces and 3 of these patients had upper GI bleeding.The lesions of the other 2 patients were 9 and 12 cm in size and also showed irregular borders.Four of the patients had ulceration on the mucosa surface.All of 7 patients were diagnosed GIST by histopathological and immunohistochemical examinations and 2 patients were malignant GIST proved after surgical therapy. Conclusions EUS evaluation is very useful in diagnosis and the EUS features will usually be sufficient for clinicians to select operation or follow-up with EUS.