磁共振动态增强扫描在肝脏炎性假瘤诊断中的价值  

Value of MR dynamic enhancing imaging in the diagnosis of inflammatory pseudotumor of the liver

作　　者：张蕊[1] 付鹏[2] 裴茁[1] 卢敬红[1] 倪海洋[1] 李丽[1] 

机构地区：[1]黑龙江省齐齐哈尔市第一医院磁共振科,黑龙江齐齐哈尔161000 [2]哈尔滨医科大学附属第四医院核医学科,黑龙江哈尔滨150001

出　　处：《中国临床医学影像杂志》2010年第11期783-785,共3页Journal of China Clinic Medical Imaging

摘　　要：目的:探讨MRI平扫及动态增强扫描在肝脏炎性假瘤(IPL)诊断中的价值。方法:回顾性分析13例16个病灶经手术切除或穿刺活检,并经病理证实的肝脏炎性假瘤的MR平扫及动态增强扫描图像。结果:13例患者中共发现16个病灶,MR平扫示在T1WI上6个为等信号,其余10个为低信号。T2WI上7个呈低信号,5个呈略高信号,4个呈等信号。多期动态增强扫描示动脉期大部分病灶未见明显强化,仅3个见轻度强化,在静脉期及延迟期见强化,呈周边环形强化、分隔样强化或偏心性小结节状强化,延迟期病灶中心无强化,病灶整体有缩小感。结论:MRI平扫结合动态增强扫描可反映IPL的病理学特征,具有一定的诊断价值。Objective: To evaluate the diagnostic value of MR imaging in inflammatory pseudotumor of the liver(IPL).Methods: The MR imaging features of 11 cases of IPLs proved by pathology were retrospectively reviewed and compared with pathologic findings.Results: Ten cases were diagnosed as benign lesions and one case mistaken for malignant tumors.Five were isointense and six were hypointense on T1WI.Three were hypointense and five were hyperintense and there were isointense on T2WI.None of the 10 IPL showed strong enhancement during arterial phase,only one showed mild enhancement;and moderate enhancement during portal venous phase and delayed phase.The feature of enhancement was multiple.Slight peripheral and eccentric enhancement during portal venous phase was detected in IPL.There was a few space in enhancement region and the peak of enhancement time was longer.Conclusion: The MR imaging findings of IPL are specific and it is possible that most of the IPL can be diagnosed combining with history.

关 键 词：肝疾病 肉芽肿 浆细胞 磁共振成像 

分 类 号：R445[医药卫生—影像医学与核医学]