目的:分析胃肠道间质瘤的影像学表现。方法:对33 例胃肠道间质瘤病人的消化道造影及CT 影像
分析。结果: 33 例原发胃肠道间质瘤75%生长在胃部，间质瘤与正常组织界限清晰是与胃癌明显的不同。结
论:向腔内或向腔内外生长是胃肠道间质瘤主要的生长方式，胃肠道造影检查能够发现病变，但缺乏特征性，且
受间质瘤生长方式的限制，但作为常规检查，在发现、定位和诊断等方面仍有一定意义，CT 是GIST 重要的检查
方法，有其独特的优势。其不仅能全面显示肿瘤的位置、内部结构、与周围组织的关系，判定肿瘤的良恶性性质，
在定位，定性诊断方面具有重要的临床价值。

Objective: Imaging performance analysis of gastrointestinal stromal tumors ( GIST) ．
Methods: To analyze gastrointestinal radiography and CT images of 33 patients with GIST confirmed．
Results: 75% of primary GISTs were found in the stomach when 33 patients were studied， the clear
boundaries between stromal tumors and normal tissue were seen as distinction from gastric carcinoma．
Conclusion: Growth inside or growth both inside and outside on cavity were considered as the major
growth pattern of GIST，pathological changes can be found by gastrointestinal radiography． Despite of
lacking characteristics and limited by the growth pattern of stromal tumor，examination by
gastrointestinal radiography of GIST is significant in the discovery，positioning and diagnosis as a
regular routine procedure． Unique advantages were found in CT methods，which not only displaying the
location， internal structure and relations with the surrounding tissue of the tumor，but making contribution
of determination the nature of the tumor． An important clinical value can be found in positioning
and diagnosis of GIST by CT examination．

R735; R814． 42; R814． 43