Fig. 1

A 23-year-old male patient represented by post-traumatic hypesthesia over C5 and C6 nerve distribution. The electrodiagnostic study showed injury at the level of roots (root avulsion), preganglionic lesion, and complete degeneration of C4, C5, and C6 nerves. a Axial 3D VIESTA image showed left preganglionic nerve root avulsion with pseudo meningocele formation. b Coronal 3D FIESTA. c Sagittal STIR images showed pseudo meningocele formation opposite to the left C5 and C6 nerve roots with perineural edema surrounding left C7 nerve root. d Coronal 3D FIESTA FAT SAT showed decrease in the muscle bulk on the left shoulder girdle with heterogeneous muscle SI denoting its denervation (arrow)