Materials andmethods:The imaging features of 68 cases of sacral nerve root cysts were studied and reviewed retrospectively, MRI was performed in 35cases, CT in 16 cases, myelograph in 29 cases and X-ray films in 68 ceases.

• 材料和方法：对68例骶神经根囊肿的MRI（35例）、CT（16例）、X线脊髓造影（29例）和X线平片（68例）等影像学特征进行回顾性分析。