颈动脉间隙单发实体肿瘤形态特征MSCT研究  

MSCT characteristics of single solid tumor in carotid space

作　　者：贺新华[1] 曹和涛[2] 

机构地区：[1]江苏省如皋市人民医院影像科,江苏如皋226500 [2]南通大学附属医院影像科,江苏南通226001

出　　处：《中国临床医学影像杂志》2010年第5期312-315,共4页Journal of China Clinic Medical Imaging

摘　　要：目的:探讨颈动脉间隙(Carotidspace,CS)单发实体肿瘤形态特征及其意义。材料和方法:收集经手术、活检及临床(找到原发灶)证实的CS神经性肿瘤19例,淋巴结肿瘤28例,均作CT平扫及增强。在肿瘤最大横断面上测量横径和矢状径,并沿两径作多平面重建(MPR),在冠矢状面上测量横径、矢状径和纵径。观察3个平面上肿瘤形态特点、毗邻关系并求两径比值。结果:横轴位上神经性肿瘤和淋巴结性肿瘤以类圆形为主,前者使颈血管外侧移位为主,后者使颈血管内侧移位为主。两径比均值依次为:1.22±0.38,1.18±0.25,t=2.31,P>0.05。在冠矢状位上,15例神经性肿瘤均呈椭圆形或梭形,21例淋巴结肿瘤均呈类圆形。4例神经性肿瘤一极(3例)/两极(1例)显示"神经尾征"。冠状位上肿瘤两径比均值依次为:2.25±0.98,1.48±0.39,t=5.27,P<0.05。矢状位上依次分别为:2.57±1.06,1.69±0.45,t=6.22;P<0.05。结论:横轴位利于显示CS肿瘤毗邻关系,MPR利于显示CS肿瘤形态特征,两者结合进一步有利于CS肿瘤诊断。Objective：To explore the features of the single solid tumor in carotid space（CS） and its clinical significance.Materials and Methods：Nineteen cases of neurogenic tumors and 28 cases of lymph node tumors in CS confirmed by surgery,biopsy and clinic（with confirmed primary tumor） were collected.All patients had CT plain and enhanced scans.The transverse and sagittal diameter of tumor in the largest cross-section were measured.Multi-planar reconstruction（MPR） was made along two planes.In the coronal plane and sagittal plane,the transverse diameter,sagittal diameter and longitudinal diameter of tumor were measured.The morphological characteristics of tumor and adjacent relations in the three reconstruction plane were observed and the ratio of the two diameters was calculated.Results：Neurogenic tumor and lymph node tumor were all mainly round in shape.The former caused the lateral displacement of the main neck vessels,the latter caused the medial displacement of the main neck vessels.The average ratio of the two diameters were：1.22±0.38,1.18±0.25,t=2.31,P〉 0.05.In the coronal and sagittal MPR,15 cases of neurogenic tumors were oval or fusiform,21 cases of lymph node tumors were round.The ＂nerve tail sign＂ was showed in one pole（3 cases） and bipolar（1 case） of 4 neurogenic tumors.In the coronal MPR,the average ratio of the two diameters successively followed by：2.25±0.98,1.48±0.38,t=5.27,P〈0.05.In the coronal MPR：2.57±1.06,1.69±0.45,t=6.22,P0.05.Conclusion：The axial position is useful in demonstration of the relationship between the tumor and adjacent structures in CS,MPR is useful in demonstration of the morphological characteristics of tumor in CS.A combination of both will further helpful for the diagnosis.

关 键 词：头颈部肿瘤 体层摄影术 螺旋计算机 

分 类 号：R739.91[医药卫生—肿瘤] R814.42[医药卫生—临床医学]