Appearance of MR Imaging of Primary Subdural Extramedullary Tumors / 实用放射学杂志

ABSTRACT

Objective To analyze the MR signs of primary subdural extramedullary tumors so as to improve the correct diagnostic rate.Methods MR signs of 40 cases with primary neoplasms of extramedullary were studied retrospectively.All cases were verified by surgery. Results Neurinoma,neurofibroma,meningioma,lipoma and teratoman had specific MR features in location,size,shape,edge,signal and enhancement change. Conclusion Primary subdural extramedullary tumors can be correctly diagnosised.