[A case of Mycoplasma pneumoniae encephalitis with elevated anti-galactocerebroside antibody titers in the cerebrospinal fluid].

Anti-galactocerebroside (anti-GC) antibody has recently been recognized as a possible demyelinating agent. On the 9th day of Mycoplasma pneumoniae (Mp) pneumonia, an 8-year-old boy had a seizure lasting three hours followed by loss of consciousness for 30 hours. Anti-GC antibody titers and myelin basic protein in the CSF were 1:640 and 8.1 ng/dl, respectively. There were no neurological sequelae. It is suggested that the degree of elevation of anti-GC antibody titers in CSF may not correlate well with the severity and neurological prognosis in Mp encephalitis.