title: Lumbosacral nerve root avulsions: MR imaging demonstration of acute abnormalities.
abstract: 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.
authors.affiliation: Department of Radiology University of Iowa Hospitals and Clinics, Iowa City, Iowa USA. k2sasaka@marianna-u.ac.jp
authors.forename: K K
authors.initials: KK
authors.lastname: Sasaka
authors.forename: P
authors.initials: P
authors.lastname: Phisitkul
authors.forename: J L
authors.initials: JL
authors.lastname: Boyd
authors.forename: J L
authors.initials: JL
authors.lastname: Marsh
authors.forename: G Y
authors.initials: GY
authors.lastname: El-Khoury
mesh_terms: D000063:Accidents, Traffic; D000293:Adolescent; D003937:Diagnosis, Differential; D005264:Femoral Fractures / Q000601:surgery; D005594:Fracture Fixation, Intramedullary; D006801:Humans; D007089:Image Enhancement; D007091:Image Processing, Computer-Assisted; D008159:Lumbar Vertebrae / Q000473:pathology; D008160:Lumbosacral Plexus / Q000473:pathology; D008279:Magnetic Resonance Imaging; D008297:Male; D008588:Meningocele / Q000175:diagnosis; D018908:Muscle Weakness / Q000175:diagnosis; D011183:Postoperative Complications / Q000175:diagnosis; D011843:Radiculopathy / Q000175:diagnosis*; D012447:Sacrum / Q000473:pathology; D012584:Sciatic Nerve / Q000473:pathology