摘要
本文回顾性分析９例淋巴瘤中，椎体受累６例，２例有椎弓附件受累。脊柱信号异常形态４例呈弥漫性，２例呈斑片状信号异常，另２例呈轻度膨胀性改变，无１例呈压缩性改变。椎体周围及硬膜外间隙内软组织信号异常亦有３种，局灶梭形７个，在椎管内５例，其中２例环绕脊髓，２例于脊髓的后方，１例于脊髓前方，但均无椎弓附件的累及；弥漫长椭圆形１个；２例腰段椎管内呈弥漫性椎管铸型。淋巴瘤的信号８例Ｔ１加权图像呈等或低信号，Ｔ２加权为均匀等信号或不均匀略高、低信号改变，呈轻至中度增强；１例平扫时与前相同，但有明显增强。前者病理示血供欠丰富，后者示血供丰富。因此淋巴瘤的ＭＲＩ表现有多种形态，其信号改变亦多种多样，但仍有一定特征。与转移性病灶相比，椎旁及硬膜外病灶倾向呈梭形改变，硬膜外病灶轴位显示明显大于骨质累及病灶，椎体骨质压缩性改变较少。与脊柱结核及硬膜外脓肿区别在于受累部位的椎间盘形态、信号显示正常。
Purpose: To study MRI manifestation of spinal lymphoma and compared them with pathological findings. Objective: MRI manifestations of 9 surgically proved spinal lymphoma were analysed. Results: The diffused abnormal signal was found in 4, patchy signal in 2 , and mild bulging signal in 2. Paravertebral soft tissue signals included spindle(7/10), long ellipse(1/10), Lumbar spinal canal filling(2/10).Two epidural lesions were located around the cord, two posterior to the cord, and one anterior to the cord. There were no pedicle and laminar involvement. Eight showed equal or slight low signals on T1 weighted images, whereas equal or mixtured signals on T2 weighted images.Mild and moderate enhancement was found in 5, and intense enhancement in one. Pathologically,the former were assoaciated with sparse vascularization and latter with ample one. Conclusions:The bony and soft tissue changes in lymphoma on MRI were complex. The spidle lesions were located in the paravertebral or epidural spaces. The extent of epidural lesions were more diffuse than osseous involvement. The vertebral collapses were less seen with relative normal disks, which cowd be used for differentiated diagnosis for spinal inflammatory diseases from the spinal lymphoma.
出处
《中华骨科杂志》
CAS
CSCD
北大核心
1997年第7期434-437,共4页
Chinese Journal of Orthopaedics
