Mascalchi M, Torselli P, Falaschi F, Dal Pozzo G
Cattedra di Radiologia, Università di Pisa, Italy.
Neuroradiology. 1995 May;37(4):303-7. doi: 10.1007/BF00588341.
We reviewed the MRI features in eight patients with spinal epidural lymphoma (clinically primary in 4 patients); one patient had multiple lesions. The cervical spine was involved in one patient, the thoracolumbar spine in 5 and the sacrum in two. Mean longitudinal extension of the epidural lesion was 2.6 vertebral segments. The tumours were homogeneously isointense with the spinal cord on T1-weighted images and isointense or hyperintense on proton-density and T2-weighted images. The spinal cord was compressed in four patients but showed signal changes in only one. In five patients the lesions communicated through the intervertebral foramina with paravertebral soft tissue masses. In all but one of the patients diffuse signal changes in the vertebral body marrow consistent with osteolytic or osteoblastic changes were identified adjacent to or at distance from the epidural lesion. Vertebral collapse was observed in two patients.
我们回顾了8例脊柱硬膜外淋巴瘤患者的MRI特征（4例临床诊断为原发性）；1例患者有多个病灶。1例患者颈椎受累，5例胸腰椎受累，2例骶骨受累。硬膜外病变的平均纵向延伸为2.6个椎体节段。肿瘤在T1加权图像上与脊髓呈均匀等信号，在质子密度加权和T2加权图像上呈等信号或高信号。4例患者脊髓受压，但仅1例出现信号改变。5例患者的病灶通过椎间孔与椎旁软组织肿块相通。除1例患者外，所有患者均在硬膜外病变附近或远处发现椎体骨髓弥漫性信号改变，符合溶骨性或成骨性改变。2例患者观察到椎体塌陷。
