MR of the spinal cord in a patient with herpes zoster

Increased signal intensity on initial magnetic resonance images of the spinal cord in a patient with herpes zoster demonstrated that this virus caused inflammation of the cervical spinal cord. This pathology corresponded well with neurologic deficits seen clinically, but the extent of the neurologic deficits ultimately could not be determined by magnetic resonance of the spinal cord alone because the nerve roots were also affected.