腹膜后炎性肌纤维母细胞瘤的CT表现及病理对照分析  

Comparative analysis of CT findings and pathology of retroperitoneal inflammatory myofibroblastic tumor

作　　者：王娟 李振玉 朱止平[2] 梁长华[2] 彭保成 刘芬 闫瑞芳[4] WANG Juan;LI Zhenyu;ZHU Zhiping;LIANG Changhua;PENG Baocheng;LIU Fen;YAN Ruifang(MR Room,Xinxiang Central Hospital,the Fourth Clinical College of Xinxiang Medical University,Xinxiang,He’nan Province 4533000,China;Department of Radiology,the First Affiliated Hospital of Xinxiang Medical University,Weihui,He'nan Province 4533100,China;Department of Pathology,Xinxiang Central Hospital,Xinxiang,He’nan Province 453000,China;MR Room,the First Affiliated Hospital of Xinxiang Medical University,Weihui,He'nan Province 453100,China)

机构地区：[1]新乡市中心医院磁共振室新乡医学院第四临床学院,河南新乡453000 [2]新乡医学院第一附属医院放射科,河南卫辉453100 [3]新乡市中心医院病理科,河南新乡453000 [4]新乡医学院第一附属医院磁共振室,河南卫辉453100

出　　处：《实用放射学杂志》2021年第12期1985-1988,共4页Journal of Practical Radiology

基　　金：河南省医学科技攻关计划普通项目(201602151);河南省医学科技攻关计划省部共建项目(201701012)。

摘　　要：目的探讨CT对腹膜后炎性肌纤维母细胞瘤(IMT)的诊断价值。方法回顾性分析10例(共13个病灶)经病理确诊的IMT患者的临床及影像学资料。患者均行腹部CT平扫及增强扫描。结果(1)10例腹膜后IMT中,位于肾周1例(共4个病灶),胰胃间1例,腹主动脉旁5例,肠系膜上动脉旁1例,腹腔干动脉旁2例;肿瘤最大径0.5~10.5 cm,中位最大径6.0 cm;类椭圆形1例(共4个病灶),边缘清楚,不规则团块状9例,边缘毛糙,周围可见渗出模糊影;6例包绕邻近大血管,1例侵犯右侧输尿管并肾积水,2例累及胰腺,1例累及肾被膜。(2)CT平扫6例呈等密度,4例(共7个病灶)呈低或略低密度,其中1例见散在点状钙化。增强呈渐进性强化,延迟期呈中度至明显强化。6例(共9个病灶)呈均匀强化实性肿块,4例动脉期及静脉期呈不均匀强化。结论腹膜后IMT表现为体积较大的单发病灶,形态不规则,边缘可见炎性渗出。CT检查对病灶组织成分及病理特征的显示具有一定价值。Objective To evaluate the value of CT in diagnosis of retroperitoneal inflammatory myofibroblastic tumor(IMT).Methods The clinical and imaging data of 10 patients(13 lesions)with pathologically confirmed IMT were analyzed retrospectively.All the patients underwent unenhanced and enhanced CT scans.Results(1)Among 10 cases,1 case with 4 lesions was located in the perirenal fat space,1 case in the area between the pancreas and stomach,5 cases near the abdominal aorta,1 case near the superior mesenteric artery,and 2 cases near the coeliac trunk.The range of maximum diameter was from 0.5 cm to 10.5 cm and the median maximum diameter was 6.0 cm.4 lesions in 1 case was oval in shape with clear margin,while 9 cases showed irregular mass with rough edges and peripheral exudation.The adjacent large vessels were surrounded in 6 cases,the ureter was invaded and thus resulted in uronephrosis in 1 case,and the pancreas in 2 cases and the renal capsule in 1 case were also invaded.(2)The unenhanced CT showed 6 lesions with equal density and other 7 lesions in 4 cases with low or slightly low density,among which scattered calcification was observed in 1 lesion.Enhanced CT showed the lesions with progressive enhancement,and with moderate to obvious enhancement in the delay phase.9 lesions in 6 cases were solid mass with homogeneous enhancement,and other 4 cases represented inhomogeneous enhancement in the arterial and venous phases.Conclusion Retroperitoneal IMT is presenting as a large single mass with irregular shape and dim edge.CT examination has certain value in displaying the pathological features and components of the lesion.

关 键 词：腹膜后肿瘤 炎性肌纤维母细胞瘤 计算机体层成像 

分 类 号：R735.5[医药卫生—肿瘤] R814.42[医药卫生—临床医学]