A 25-year-old man presents with progressive bilateral hearing loss, tinnitus, and neck pain. His neurological exam is remarkable for bilateral sensorineural hearing loss, mild gait instability, and diffuse hyper-reflexia. MRI of the cervical spine is shown.

What is the lesion on the cervical spine MRI? What other study or studies would you order to evaluate the hearing loss? What is the likely (systemic) diagnosis?

Axial Post-Contrast MRI of Cervical Spine