胃肠道间质瘤影像学表现分析  

Analysis on Imaging Findings of Gastrointestinal Stromal Tumor

作　　者：李智慧[1] 邹媛[1] 翟昭华[2] 谢贤镛[3] 但汉彬[1] 黄琴莉[1] 

机构地区：[1]川北医学院基础医学院病理学学生科研小组 [2]川北医学院附属医院放射科 [3]川北医学院病理学教研室,四川南充637000

出　　处：《医学综述》2010年第1期139-141,共3页Medical Recapitulate

基　　金：川北医学院大学生科创基金支助项目(081113)

摘　　要：目的探讨胃肠道间质瘤(GIST)的临床表现及影像学检查的诊断价值。方法对56例经病理证实的GIST的临床及影像资料进行回顾性分析。结果56例GIST患者中发生于胃27例,小肠11例,其他部位18例。肿块平均直径7.9cm,腔外生长者24例,腔内生长者16例。胃肠道钡餐造影表现(16例):腔内充盈缺损,局部黏膜展平,胃、肠腔被推挤,可见黏膜破坏,蠕动消失。CT9例,肿块密度均匀1例,不均匀8例。增强后均匀强化2例,不均匀强化7例。MRI4例,肿块T1WI呈均匀低信号1例,3例不均匀低信号;T2WI肿块呈高信号。结论GIST影像学表现有一定的特征性,在胃肠钡餐造影上以消化道腔外肿块为主,CT和MRI在GIST诊断中起重要作用。Objective To evaluate the clinical behavior and the value of imaging findings of gastrointestinal strmnal tumors（GIST）. Methods The image findings and clinical date of 56 cases with GIST prored by pathology were retrospectively analyzed. Results The tumors originated from the stomach （ n = 27 ）, intestine（ n = 11 ）and extragastrointestinal（ n = 18 ）. The tumor size was 7.9cm. There were 24 exophytic growth tumor and 16 introphytic growth. The findings of barium meal examination in 16 cases showed filling defect and mass press in the stomach cavity and the local mueosa was destroyed, the peristole disappeared. On CT examinations, l tumor appeared as homogenous density and 8 tumors as heterogenous density. 2 cases demonstrated homogeneous while 7 heterogeneous after enbancement. MRI of 4 patients, tumors appeared as homogeneous hypointensity in 1 case and heterogeneous hypointensity in 3 cases in T1WI,heterogeneous hyperintensity in all 4 cases on T2WI. Conclusion Imaging findings of GIST have some characteristics, most tumors originated from outside wall of gastrointestinal in barium meal examination, CT and MRI paly an important role in diagnosis of GIST.

关 键 词：胃肠间质瘤 临床表现 体层摄影术 X线计算机 磁共振成像 

分 类 号：R372[医药卫生—病原生物学]