Subcortical white matter hyperintensityMitochondrial tRNA-Leu 1 deficiency [31]ALG8-CDG [90]PMM2-CDG [90]COG5-CDG [90]Multiple carboxylase deficiency [27]Succinic Semialdehyde Dehydrogenase Deficiency [71]FBXL4 deficiency [74]Mitochondrial NAD kinase 2 deficiency [75]Birk-Landau-Perez syndrome [78]HypomyelinationGABA transaminase deficiency [70]Delayed myelinationCreatine transporter deficiency [72]Phosphatidylserine flippase deficiency [77]. This evidence concerns the gene PMM2 and psychomotor regression-oculomotor apraxia-movement disorder-nephropathy syndrome.