胃肠道间质瘤的CT诊断  

Diagnosis of GIST by CT

作　　者：廖明朗 唐文才[1] 

机构地区：[1]海南省农垦总局医院放射科,海南省海口市570203

出　　处：《同济大学学报（医学版）》2008年第1期82-85,共4页Journal of Tongji University(Medical Science)

摘　　要：目的分析、提高对胃肠道间质瘤(gatrointestinal stromal tumor,GIST)的CT表现及诊断价值。方法收集经病理证实的胃肠道间质瘤17例,回顾性分析其CT表现。结果17例胃肠道间质瘤中位于胃9例,小肠7例,结肠1例。CT表现为肿块内常见出血、坏死及囊变,实质部分强化明显,囊变坏死部分强化不明显,静脉期强化较动脉期明显。结论CT对GIST诊断有一定价值,有时与平滑肌肿瘤及神经源性肿瘤鉴别困难,最终诊断需要病理免疫组化。Objective To improve the diagnosis of gastrointestinal stromal tumor （GIST） by analyzing the CT images of patients with GIST. Methods Seventeen patients with GIST confirmed through pathology verification were collected and their CT images were analyzed retrospectively. Results Among the 17 patients, there were 9 cases in stomach, seven cases in small intestine, and 1 case in colon. The main display of CT were hemorrhage, necrosis and cystic change within the tumor. The enhancement of parenchyma was clear while that of putrescence was not. The enhancement of venous phase was clearer than that of arterial phase. Conclusion CT has certain value in the diagnosis of GIST. Sometime it is hard to differentiate leiomyoma with neurogenic tumor, thus the immunohistochemistry（IHC） is needed to make a final diagnosis.

关 键 词：胃肠道间质瘤 体层摄影术 X线计算机 

分 类 号：R814.42[医药卫生—影像医学与核医学]