https://anpgm.fr/media/documents/ANPGM_014_Megalencephalie_et_leucodystrophie_MLC1.doc 2009 France guideline cysts gene, nos megalencephalic leukoencephalopathy with subcortical cysts Leukodystrophy genes leukodystrophy, nos Megalencephaly macroencephaly Megalencephaly Embarrassment hereditary central nervous system demyelinating diseases