A 32-year-old woman develops diffuse burning pain in her right arm that is now beginning to affect the left arm as well. On exam, sensation to pinprick and pain is markedly diminished across her upper...

A 32-year-old woman develops diffuse burning pain in her right arm that is now beginning to affect the left arm as well. On exam, sensation to pinprick and pain is markedly diminished across her upper torso and arms but is intact beneath the shoulder blades and around the neck. She is otherwise intact. What might an MRI of the brain and spinal cord be expected to show?

A. Bilateral foraminal stenosis of the cervical spine

B. Downward displacement of the cerebellar tonsils into the foramen magnum and central syrinx in the low cervical/ upper thoracic cord

C. Diffuse patchy demyelination bilaterally throughout brain white matter

D. Normal

E. Low cervical disc herniation with cord compression