原发性腹膜后肿瘤的CT诊断  

CT Diagnosis of Primary Retroperitoneal Tumors

作　　者：陈年根[1] 姚茹国[1] 黄学全[1] 丁仕义[1] 许新复[1] 

机构地区：[1]第三军医大学西南医院放射科

出　　处：《现代医用影像学》1997年第3期99-103,共5页Modern Medical Imageology

摘　　要：目的：评价CT对原发性腹膜后肿瘤的诊断价值。材料和方法：对43例手术、病理证实的原发性腹膜后肿瘤的CT表现进行回顾性分析，并与手术、病理所见相对照。结果：43例腹膜后肿瘤的主要定位征像为：（1）腹膜后壁层受压前移；（2）腹膜后结构被推前移、被肿瘤包绕或与肿瘤界面不清；（3）其它；本组CT定位诊断正确率83．72％（36／43）。良恶性肿瘤的大小无显著差异（P＞0.05），囊性和均匀密度的肿瘤都为良性，不均匀密度在良恶性肿瘤中均可见；CT定性正确：良性肿瘤10／18例，恶性肿瘤15／25例；组织类型估计正确16/43例。结论：CT对原发性腹膜后肿瘤的定性诊断价值很大，而对组织类型的估计价值有限。Purpose: To evaluate of CT in diagnosic values of primary retroperitoneal neoplasms (PRN). Materials and methods: CT findings of 43 cases PRN were analysed and cerrelated with surgery. Results: Among 43 cases, CT findings of localization include: (1 ) anterior displacement of posterior peritonaeum; (2) changes of abdomenal structures: a. anterior displacment, b. wraping up retroperitoneal organs and vessels, c. the border of mass being not clear; (3) others. The cerrect rate of CT localiztion is 83. 72% (36/43 cases). There is not any differentes in size between benign and malignant tumors (P>0. 05). The eystic and homogenous masses alomost are benign. The unhomogenous masses may be benign or malignant. CT localization of all PRNs is cerrect, but cerrect CT historical evaluation is only 16 cases of 43. Conclusion: CT is very valuable in localizical diagnosis of PRN, but value of CT is limited in evaluation of histology.

关 键 词：腹膜后肿瘤 肿瘤 CT 

分 类 号：R735.504[医药卫生—肿瘤]