3 months, Male, former 23 week, corrected gestational age of 38 weeks. Evaluate for PVL. History of grade 4 IVH. There are areas of T1 hyperintensity, T2 hypointensity, with susceptibility effect in the germinal zones along the surface of the lateral ventricles posteriorly. There is also susceptibility effect in the dependent aspects of the occipital horns. Findings are consistent with known history of intraventricular hemorrhage. Small foci of prior hemorrhage in the bilateral cerebellar hemispheres also noted. There is mild prominence of the lateral ventricles without clear evidence of hydrocephalus.There is mild thinning of the periventricular white matter in the parietal and occipital regions. No cystic changes in the periventricular white matter.Normal T1 and T2 shortening expected for a term infant in the posterior limbs of the internal capsule is not definitively appreciated suggesting possibility of delayed myelination and can be further assessed with follow-up studies. There is prominence of the extra-axial spaces along the bilateral cerebral convexities likely reflecting combination of mild parenchymal volume loss and small extra-axial collections without mass effect.No diffusion abnormality to suggest acute ischemia. No intracranial mass or mass effect. No midline shift or herniation. Calvarium and extra cranial soft tissues are grossly unremarkable.
1. Evidence of prior intraventricular hemorrhage.2. Mild thinning of the parieto-occipital white matter consistent with white matter injury of prematurity/periventricular leukomalacia.3. Small bilateral extra-axial collections without mass effect.4. Mild prominence of the lateral ventricles without clear evidence of hydrocephalus.5. Myelination of the posterior limbs of the internal capsules, which is expected for corrected gestational age, is not clearly appreciated and suggests hypomyelination. Findings can be further assessed with follow-up studies.