Acute disseminated encephalomyelitis (ADE) is a neurological disorder involving inflammation of the brain and spinal cord. A hallmark of the disorder is damage to the myelin sheath that surrounds the nerve fibers in the brain.

Acute disseminating encephalomyelitis can occur as a consequence of a bacterial or viral infection (including HIV), following recovery from infection with the malarial protozoan, or as a side effect of vaccination or another inoculation.

That is the correct spelling of "encephalomyelitis", a brain disease.

I interview a 26 year old female patient with Acute disseminated encephalomyelitits.

When both the brain and spinal cord are involved in an infection, the disorder is called encephalomyelitis