Table 2. Pertinent diagnostic imaging modalities and their results.

Electromyogram (EMG) Nerve Conduction Study, magnetic resonance imaging (MRI) of the brain, and MRI of the cervical/thoracic/lumbar spine. *Abnormal values; ^†clinically significant values.

Diagnostic Imaging Modality	Result
EMG Test Nerve Conduction Study	Length dependent sensorimotor polyneuropathy without major demyelinating features*†
MRI brain	Unremarkable
MRI cervical/thoracic/lumbar spine	Multilevel disc protrusions* and increased signal attenuation in the cervical cord dorsal columns*†