胃肠道间质瘤CT影像学表现及其与病理特征的关系

CT Imaging Findings of Gastrointestinal Stromal Tumor and Their Relationship with Pathological Features

目的研究胃肠道间质瘤(GIST)CT影像学表现及其与病理特征的关系。方法回顾性分析我院2017年1月至2019年10月诊治的42例GIST患者临床资料,所有患者均经手术或病理学检查证实,分析患者影像学表现及其与病理特征的关系。结果 42例中,发生在胃部21例,肠道19例,胃肠道外2例;危险程度分级:极低/低度恶性潜能8例,中度恶性潜能6例,高度恶性潜能28例。不同危险程度分级肿瘤的生长部位和强化程度、方式差异均无统计学意义(P>0.05),肿瘤形态以及密度差异均有统计学意义,Spearman相关性分析显示形态与密度分别与危险程度具有高度相关性(P<0.05)。结论 GIST的CT影像学表现具有一定的特征性,病灶部位的密度以及形态可为肿瘤危险程度的评估提供参考依据。

Objective To study the CT imaging findings of gastrointestinal stromal tumor(GIST)and their relationship with pathological features.Methods clinical data of 42 patients with GIST diagnosed and treated in the hospital between January 2017 and October 2019 were retrospectively analyzed.All patients were confirmed by surgery or pathological examination.The imaging findings and their relationship with pathological features were analyzed.Results Of the 42 cases,21 occurred in the stomach,19 in the intestine and 2 outside the gastrointestinal tra ct.There were 8 cases with extremely low/low malignant potential.In terms of the risk level,6 cases with moderate malignant potential,and28 cases with high malignant potential.There was no statistically significa nt difference in the location,enhancement degree,or method of tumors at different risk levels(P>0.05).However,there were statistically significa nt differences in tumor shape and density.Spea rman correlation analysis showed that shape and density were highly correlated with the risk level(P<0.05).Conclusion The CT imaging findings of GIST are characteristic.The density and shape of the lesion can provide a basis for the assessment of tumor risk level.