1Williams B. Sciatica caused by sacral-nerve-root cysts [J]. Lancet,1971, 2:137
2Siqueira EB, Schaffer L, Kranzler LI,et al. CT characteristics of sacral perineural cysts: report of two cases[J]. J Neurosurg, 1984,61 :596
3Tarlov IM. Spinal perineurial and meningeal cysts[J]. J Neurol Neurosurg Psychiatry, 1970, 33:833
4Plewes JL, Jacobson I. Sciatica caused by sacral-nerveroot cysts[J]. Lancet, 1970, 1:799
5Su CC, Shirane R,Okubo T, et al. Surgical treatment of a sacral nerve root with intermittent claudication in an 85-year-old patient: case report[J]. Surg Neurol, 1996, 45:283
