NCIt definition : An inflammatory process affecting the central nervous system. It is characterized
by perivascular demyelination. Symptoms usually follow an acute viral infection or
immunization and include fever, confusion, somnolence and involuntary movements. It
may lead to coma and death.;
Alternative definition : NICHD: Transitory inflammation of the brain and spinal cord that is associated with
demyelination with or without neuronal damage.;