Nerve root
avulsion and pseudomeningocele
•
Findings:
– Abnormal high T2
signal dumbbell-shaped lesion in a high thoracic neural foramen
– Mass effect on thecal
sac
– Large high T2
collection in the adjacent soft tissues
•
A result of major trauma.
•
Disruption of the meninges and spill of CSF into surrounding tissues
•
Focal collection at the nerve root may appear as a discrete mass and
displace thecal sac.
