Step 1 → Neurology and Special Senses Demyelination and Myelin DisordersPreview this topic sectionPreview the conditions. Plans unlock the full Step 1 details when you need them. Free Biochemistry Free Microbiology Plans Demyelination and Myelin Disorders conditions Acute Disseminated Encephalomyelitis (ADEM) Adrenoleukodystrophy Multiple Sclerosis Osmotic Demyelination Syndrome Subacute Combined Degeneration