MOG and acute disseminated encephalomyelitis: The degree of infiltrating B cells expressed as mean cell counts of each cell population/1000 μm2 (SD) was 9.6 (11.9) for TDL cases, 4.7 (8.2) for MOG-antibody-associated disease with extensive lesions, 12.4 (12.7) for ADEM cases, 4.0 (23.5) for MS (chronic phase) and 4.1 (6.3) for NMOSD (50).