PT - JOURNAL ARTICLE AU - Chen, C.Y. AU - Chuang, Y.L. AU - Yao, M.S. AU - Chiu, W.T. AU - Chen, C.L. AU - Chan, W.P. TI - Posterior Epidural Migration of a Sequestrated Lumbar Disk Fragment: MR Imaging Findings DP - 2006 Aug 01 TA - American Journal of Neuroradiology PG - 1592--1594 VI - 27 IP - 7 4099 - http://www.ajnr.org/content/27/7/1592.short 4100 - http://www.ajnr.org/content/27/7/1592.full SO - Am. J. Neuroradiol.2006 Aug 01; 27 AB - SUMMARY: We present a 75-year-old man who, for 2 weeks, had progressive pain in both of his thighs when standing straight. MR imaging showed a sequestrated disk fragment, which had a signal intensity similar to that of a herniated disk with a rim enhancement in the posterior epidural space and a ruptured outermost annulus of the intervertebral disk at L2–3. Awareness of these MR imaging findings can help in the diagnosis of posterior epidural disk migration.