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White matter disorders: diagnosis algorithm (2)

An algorithm for the diagnosis of white matter disorders based on the pattern of abnormalities on the brain MRI. (Part 2). (4H: hypomyelination, hypodontia, and hypogonadotropic hypogonadism; HBAC: Hypomyelination with atrophy of the basal ganglia and cerebellum; HEMS: hypomyelination of early myelinating structures; ODDD: oculodentodigital dysplasia; HCC: hypomyelination with congenital cataract; PMD: Pelizaeus Merzbacher disease; PMLD: Pelizaeus Merzbacher-like disease; NCL: Neuronal ceroid lipofuscinoses.) (From: Schiffmann R, van der Knaap MS. Invited article: an MRI-based approach to the diagnosis of white matter disorders. Neurology 2009;72(8):750-9. And: Vanderver A, Tonduti D, Schiffmann R, Schmidt J, van der knaap MS. Leukodystrophy overview. In: Pagon RA, Adam MP, Ardinger HH, et al, editors. GeneReviews® [Internet]. Seattle: University of Washington, 2014.)