肾上腺淋巴瘤的影像学表现  

Adrenal Lymphoma:The Findings of Dynamic CT and MR

作　　者：周建军[1] 曾维新[1] 周康荣[1] 王建华[1] 曾蒙苏[1] 丁建国[1] 程伟中[1] 

机构地区：[1]复旦大学附属中山医院放射科上海市影像医学研究所,上海200032

出　　处：《实用放射学杂志》2007年第10期1325-1327,1335,共4页Journal of Practical Radiology

摘　　要：目的探讨动态增强影像学对肾上腺淋巴瘤的诊断价值。方法回顾性分析5例经手术病理证实的肾上腺淋巴瘤病例,5例皆为B细胞型非何杰金氏淋巴瘤,术前经MDCT动态增强检查,其中2例经MR动态增强检查,MR检查序列为SET1WI、FSET2WI和SPGR平扫和动态增强。所有病例影像资料均经3名高年资医师分析阅片,分别确定病变特征、浸润范围、软组织肿块的范围,信号特征,病变的强化程度等。结果5例肾上腺淋巴瘤8个病灶中,双侧3例,单侧2例;病灶呈椭圆形6个,三角形2个。肿瘤直径4.3～11.9cm,平均6.5cm。CT平扫肿瘤均匀密实,动态增强动脉期轻度强化,门脉期中度强化。MRSE-T1WI呈低信号,信号略不均匀,FSE-T2WI脂肪抑制呈等低或略高信号,低于其它肾上腺原发或继发恶性肿瘤,且信号不均匀,可见多发线条状高信号影。SPGR动态增强早期可见线条状强化,门脉期强化更明显,趋均匀。结论肾上腺淋巴瘤具有一定的影像学特点。Objective To explore the diagnostic vale of dynamic SCT and MRI for adrenal lymphoma. Methods 5 cases with adrenal non - Hodgkin＇ s B - cell lymphoma confirmed by pathology were retrospectively analysed, all eases underwent spiral CT dynamic enhanced sean,2 eases underwent plain MRI and MR dynamic enhanced scan. CT and MR data （including the tumor characteristics and extent,signal intensity and contrast -enhanced pattern） was analysed by three senior radiologists. Results The diameter of 3 bilateral lesions,2 unilateral lesions was 4.3 -11.9 em,with a mean diameter of 6.5 em. The tumors were ellipse in 6 and triangle in 2. The tumors were hemogeneous density on plain CT scan, slight enhancement on arterial phase and middle enhancement on portal vein phase. The tumor presented low - middle signal intensity on SE T1WI, and middle inhomogeneous signal intensity on FSE T2 WI with liner obvious high signal intensity. All lesions presented inhomogeneous MR dynamic delayed contrast - enhanced with obvious enhancement which was different to dynamic spiral CT. Conclusion The adrenal lymphoma are of certain imaging characteristics.

关 键 词：肾上腺 淋巴瘤 磁共振成像 体层摄影术 X线计算机 动态增强扫描 

分 类 号：R736.6[医药卫生—肿瘤] R445.2[医药卫生—临床医学]