摘要
目的分析恶性胃肠道间质瘤(GIST)的CT特点,探讨CT对胃肠道间质瘤的诊断价值。方法回顾性分析17例原发性胃肠道间质瘤的临床及影像学资料。结果小的胃间质瘤(≤5cm)表现为形态规则、边界清楚、密度及强化均匀;大的胃间质瘤(≥10cm)表现为形态不规则,与邻近结构分界不清或趋于模糊,出血、囊变、坏死显著。病变侵犯邻近器官或出现转移(肝、网膜、肠系膜)是最肯定的恶性征象。肿块的大小及有无坏死在良恶性鉴别方面有高度的相关性:肿块越大,坏死成分越多,恶性程度越高。而增强后是否强化与肿瘤的良恶性无明显关系。结论胃间质瘤的CT表现与肿瘤的大小有关;CT对胃肠道间质瘤有一定的诊断价值。
Objective To investigate the CT features of gastrointestinal stromal tumor （GIST） and to explore the CT value of diagnosis. Material and methods Reviewing the imaging and clinical features of 17 GIST cases. Results Small gastrointestinal tumour shows regular shape with a clear margin, and it has homogeneous appearance in routine scans and enhanced scans. Large ones show irregular shape, heterogeneous appearance in routine scans and enhanced scans. They have dark margins and tend to bleeding and necrosis. Conclusion The CT features of GIST are related to the size of the tumour. CT is valuable in diagnosing GIST.
出处
《中国医疗设备》
2010年第6期131-133,共3页
China Medical Devices
关键词
胃肠道间质瘤
X线计算机体层摄影
影像诊断
gastrointestinal stromal tumors
X-ray computed tomography
imaging diagnosis
