TY - JOUR T1 - Posterior Epidural Migration of a Sequestrated Lumbar Disk Fragment: MR Imaging Findings JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 1592 LP - 1594 VL - 27 IS - 7 AU - C.Y. Chen AU - Y.L. Chuang AU - M.S. Yao AU - W.T. Chiu AU - C.L. Chen AU - W.P. Chan Y1 - 2006/08/01 UR - http://www.ajnr.org/content/27/7/1592.abstract N2 - 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. ER -