Neonatal HIE in a 10-day-old boy with profound perinatal asphyxia.
A, DW image shows extensive hyperintense lesions involving the frontotemporoparietal white matter, internal capsules, and basal ganglia.
B, DW image at the level of the midbrain shows hyperintense lesions with decreased ADC (not shown) in the bilateral cerebral peduncles. These findings represent the early phase of wallerian degeneration.