RT Journal Article SR Electronic T1 Lumbosacral Nerve Root Avulsions: MR Imaging Demonstration of Acute Abnormalities JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1944 OP 1946 VO 27 IS 9 A1 K.K. Sasaka A1 P. Phisitkul A1 J.L. Boyd A1 J.L. Marsh A1 G.Y. El-Khoury YR 2006 UL http://www.ajnr.org/content/27/9/1944.abstract AB SUMMARY: Most of the previously reported lumbosacral nerve root avulsions presented with pseudomeningoceles at the time of delayed initial imaging. We report a case of traumatic lumbosacral nerve root injury associated with an isolated femur fracture and demonstrate the evolution of pseudomeningoceles following nerve root avulsions and edema in the perineural fat identified on the initial MR imaging.