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Magnetic resonance (MR) imagines of patient with 4H syndrome. (A) MR T1-weighted axial scan demonstrates iso- or hyperintensity of the cerebral white matter. (B) MR T2-weighted axial scan demonstrates irregular hyperintensity of the cerebral white matter with hypointensity of the optic radiations (white arrow), lateral thalamus (thick black arrow), and dentate nucleus (thin black arrow).
