MRI在局灶性巨大淋巴结增生症诊断中的应用价值  

Clinical application of MRI in diagnosis of focal Castleman's disease

作　　者：张琳[1] 辛顺宝[1] 李蕊[1] 齐先龙[1] 

机构地区：[1]济宁医学院附属济宁市第一人民医院,山东济宁272011

出　　处：《济宁医学院学报》2013年第6期402-404,共3页Journal of Jining Medical University

摘　　要：目的探讨MRI在局灶性巨大淋巴结增生症诊断中的应用价值。方法回顾性分析经病理证实的6例局灶性巨大淋巴结增生症患者的MRI表现。结果本组6例巨大淋巴结增生症患者中包括颌颈部病变4例,腹部病变2例,均为透明血管型,形态为圆形或卵圆形,边缘较光滑,MRI平扫表现为等或稍长T1、稍长T2信号影,信号匀匀,未见明显坏死或钙化,动态增强扫描所得时间信号强度曲线表现为速升缓降或平台型,DWI序列呈均匀的弥散受限高信号,其ADC值为(1.02±0.23)×10-3 mm2/s。结论局灶性巨大淋巴结增生症的MRI表现具有特征性,常规MRI结合DWI序列及动态增强扫描有更高的诊断价值。Objective To analyze the value of MRI in the diagnosis of focal Castleman＇s disease.Methods Six cases of pathologically-proved focal Castleman＇s disease were retrospectively analyzed.Results The lesions that located in the neck were 2cases,and in the abdomen 4cases.All of them were hyaline vascular type.The well-circumscribed lesions were round or oval.The lesions exhibited iso-intensity or hypo-intensity signal on T1-weighted images and hyperintensity signal on T2-weighted images.None of 6lesions had necrosis or calcification.The patterns of time-signal intensity curve of dynamic contrast-enhanced MRI in 6patients considered to have early enhancement and low washout.The average ADC value at the region with most significantly restricted diffusion was（1.02±0.23）×10-3 mm2/s.Conclusion MRI manifestations of focal Castleman＇s disease have certain imaging characteristics,and conventional MRI combined with DWI and dynamic enhanced scanning has higher diagnostic value.

关 键 词：巨大淋巴结增生症 磁共振弥散成像 时间信号强度曲线 

分 类 号：R445.2[医药卫生—影像医学与核医学]