Vanishing white matter disease with mutations in EIF2B5 gene.

An 18-mo-old girl was brought with complaints of sudden loss of attained milestones after a febrile illness at 13 mo of age. MRI of the brain showed extensive loss of white matter with rarefaction and cystic degeneration; suggestive of vanishing white matter disease. The patient was found to be compound heterozygote for two mutations in the gene EIF2B5; confirming the diagnosis.