良、恶性消化道间质瘤MSCT影像学表现及其病理对照分析

目的分析消化道间质瘤的MSCT表现,提高对良、恶性消化道间质瘤的影像诊断率。方法回顾分析本院2017年8月至2019年3月收治的50例胃间质瘤患者的临床资料。观察MSCT平扫及增强扫描的影像特点,与病理诊断结果进行对照;分析消化道间质瘤的MSCT表现,记录肿瘤平扫和增强后的相关数据。结果50例患者中肿瘤直径1.8cm^22.47cm之间。其中肿瘤直径大于5cm的患者有7例,直径5cm^10cm的患者有12例,肿瘤直径小于5cm的患者有31例。肿瘤向腔内生长的有34例,占68.00%;肿瘤向腔内生长的有16例,占32.00%。20例密度均匀;30例密度不均匀。良性肿瘤中1例伴有囊变,增强扫描后肿瘤边缘强化较明显;低度恶性肿瘤中有13例增强扫描后肿瘤边缘明显强化;恶性肿瘤中3例增强扫描后肿瘤边缘明显强化。结论肿瘤发生的部位、肿块大小、形态、密度、轮廓及与周围脏器的关系等MSCT表现对判断肿瘤的良恶性具有十分重要的意义,可为临床治疗方式的选择和肿瘤预后的评估提高可靠的依据。

Imaging Features of Benign and Malignant Gastrointestinal Stromal Tumors in MSCT and Pathological Analysis

Objective To analyze the features of gastrointestinal stromal tumors in MSCT and improve the diagnostic rate of images for benign and malignant gastrointestinal stromal tumors.Methods The clinical data of 50 patients with gastric stromal tumor admitted to our hospital from August 2017 to March 2019 were retrospectively analyzed.The imaging features of MSCT plain scan and enhanced scan were observed and compared with the results of pathological diagnosis.The features of gastrointestinal stromal tumors in MSCT were analyzed,and the relevant data after plain scan and enhanced scan of tumor.Results The tumor diameter of 50 patients was between 1.8cm and 22.47cm.Among them,there were 7 patients with tumor diameter greater than 5 cm,12 patients with diameter between 5 cm and 10 cm,and 31 patients with tumor diameter less than 5 cm.There were 34 cases with tumors growing into the cavity,accounting for 68.00%;16 cases of tumors growing out the cavity,accounting for 32.00%.There were 20 cases with uniform density and 30 cases with uneven density.In benign tumors,1 case was combined with cystic lesions,and the enhancement of margin of tumor was more obvious after enhanced scan.In malignant tumors with low degree,there were 13 cases whose margin of tumor was obviously enhanced after enhanced scan.In malignant tumors,there were 3 cases whose margin of tumor was obviously enhanced after enhanced scan.Conclusion The features of MSCT such as location,size,shape,density and contour of the tumor,and relationship with the surrounding organs,are of great significance for judging the benign and malignant tumors,and can provide a reliable basis for the choice of clinical treatment methods and the evaluation of prognosis for tumor.