8-month-old, ex-26 weeker, with history of right grade 3 and periventricular leukomalacia. There are periventricular cystic changes measuring up to approximately 20 mm with ex vacuo dilatation at the right lateral ventricle and minimal midline shift. The lateral and third ventricles are mildly prominent in size and the corpus callosum is diffusely thinned likely due to parenchymal volume loss. Likewise, there is right-sided Wallerian degeneration. There is scattered susceptibility effect along the margins of the bilateral lateral ventricles centered in the region of the caudothalamic grooves, right more than left. There is also mild prominence of the subarachnoid spaces, particularly along the frontal convexities. There is no evidence of intracranial mass or acute infarct. There is a normal myelination pattern for age. The skull and extracranial soft tissues are unremarkable.
1. Periventricular cystic changes with ex vacuo dilatation at the right frontal horn, consistent with periventricular leukomalacia likely related to a germinal matrix hemorrhage.2. Mild prominence of the subarachnoid spaces, particularly along the frontal convexities suggest benign enlargement of the subarachnoid spaces of infancy. I personally reviewed the Images and/or procedure with the Resident/Fellow and agree with this report.