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Follow up MRI study shows the following:
- patchy encephalomalacia and gliosis of the involved regions, elicit CSF-like signal with surrounding T2 & FLAIR hyperintensities. Hyperintensities noted at DWI and ADC are related to T2 shine through artifact
- cortical laminar necrosis presents as gyriform T1 hyperintensities
- cerebral atrophy and volume loss present as dilatation of the supratentorial ventricular system and extra-axial CSF spaces