脊髓成血管细胞瘤的MRI诊断

目的 探讨脊髓成血管细胞瘤的MRI特征。材料与方法 5例经手术病理证实的脊髓成血管细胞瘤患者,男1例,4例,年龄25－63岁,平均37岁。全部采用超导MRI系统检查。结果 5例成血管细胞瘤发生于颈髓和胸髓。根据其MRI表现,可分为大囊小结节和实质性胪块型。在增强MRI上,壁结节及实性结节肿块皆呈明显均匀强化。3例肿块内及周围可见流空血管。结论 脊髓成血管细胞瘤的MRI特征为：易囊性变,囊结节及实性部分明显强化并可见流空血管。

MRI Diagnosis of Spinal Hemangioblastomas

Objective To explore MRI features of spinalhemangioblastomas. Materials and Methods MRI was performed in 5 patients (1 male, 4 females, aged 25～63 years with a mean of 37) with pathologically-proved spinal hemangioblastomas. Results The hemangioblastomas occurred in cervical and thoracic spinal cord in all 5 patients. Based on the MRI manifestations the lesions could be divided into two types: (1) large cyst with small mural nodules, and (2) solid mass. All of the solid masses and mural nodules displayed marked and homogeneous enhancement on MRI after the injection of Gd-DTPA. Vascular signal void within and around the mass was seen in 3 patients. Conclusion The MRI features of the spinal hemangioblastoma are cystic degeneration, marked enhancement of the solid mass and the mural nodule within the cyst, and vascular signal void sign.