胃间质瘤的影像学诊断

Imageology Diagnosis of Gastric Stromal Tumor

目的:研究胃间质瘤的CT诊断。材料与方法:收集经病理证实胃间质瘤16例,其中男9例,女7例,年龄23～70岁,平均年龄53.9岁。全部病例作了CT平扫,其中10例作了CT强化扫描。结果:16例中发生于贲门胃底3例,胃体幽门13例;位于黏膜下3例,浆膜下13例;肿瘤平均最大直径10.5cm。平扫CT肿瘤呈不均匀低密度区,CT值7～38Hu,强化CT肿瘤呈不均匀强化,肿瘤复发时坏死囊变区明显。结论:CT扫描对胃间质瘤有重要的诊断作用。

Purpose：To Study CT diagnosis of gastric stromal tumor.Materials and Methods：16 cases of gastic stromal tumor proved by pathology were presented,in which there were 9 cases of male and 7 cases female,age ranged 23-70 years（mean age,53.9 years）.CT images of all 16 cases were obtained,in which enhanced CT studies were done in 10 cases.Results：Among 16 cases of gastric stromal tumor,the tumors were located in the cardiac and body of stomach in 3 cases,and in the gastric antrum and fundus of stomach in 13 cases.Tumors were found in submucosa in 3 cases and in subserosa in 13 cases,which was showed 10.5 cm in the largest diameter.The tumors were demonstrated heterogeneous density on conventional CT scans（7-38Hu）,and inhomogeneous enhancement on enhanced CT scans.The necrotic and cystic changes were obvious for the recurrent case.Conclusion：CT study plays an important role in the diagnosis of gastric stromal tumor.