MSCT评价胃肠道间质瘤的恶性程度  

MSCT in assessment of the malignancy of gastrointestinal stromal tumor

作　　者：宋晓丽[1] 方一[1] 吴正阳[1] 赵俊功[1] 

机构地区：[1]上海交通大学附属第六人民医院放射科,上海200233

出　　处：《中国医学影像技术》2012年第10期1870-1873,共4页Chinese Journal of Medical Imaging Technology

摘　　要：目的探讨MSCT特征在评价胃肠道间质瘤(GIST)恶性程度中的价值。方法收集44例首次接受增强CT检查、并经手术病理确诊为GIST的患者资料,分析不同恶性程度GIST的CT表现差异。结果病理诊断极低度恶性GIST 5例,低度恶性9例,中度7例,高度23例。不同恶性程度的GIST在病灶大小、病灶部位、生长方式、强化方式、边界、系膜脂肪浸润、坏死囊变、肿瘤血管及侵犯周围器官等CT特征方面的差异均有统计学意义(P均<0.05)。结论肿瘤大小、病灶部位、生长方式、强化方式、边界、系膜脂肪浸润、坏死囊变、肿瘤血管及侵犯周围器官等CT特征对于判断GIST的恶性程度具有重要价值。Objective To explore the value of MSCT features in predicting the malignancy degree of gastrointestinal stro- real tumor （GIST）. Methods CT Data of 44 patients with pathologically proved GIST were reviewed. The differences of CT features among different malignancy degrees of GIST were analyzed. Results Pathology confirmed very low malignancy GIST in 5 patients, low malignancy in 9, moderate malignancy in 7 and high malignancy in 23. The tumor size, location, growth pattern, enhancement pattern, contour, mesenteric fat infiltration, cystic-necrosis, tumor vascularization and direct organ invasion had statistical differences among different malignancy degrees （all P〈O. 05）. Conclusion Tumor size, loca- tion, growth pattern, enhancement pattern, border, mesenteric fat infiltration, cystic-necrosis, tumor vascularization and direct organ invasion might be predictive indexes for malignancy of GIST.

关 键 词：胃肠间质瘤 体层摄影术 X线计算机 诊断 恶性程度 

分 类 号：R814.42[医药卫生—影像医学与核医学] R735[医药卫生—放射医学]