 There is a right cerebral convexity subdural hematoma that measures up to 5 mm in thickness. It is mainly hyperintense on T1 and T2 with components that are hyperintense on T1 and hypointense on T2 weighted imaging. There is also a thinner subdural hematoma within the posterior fossa dorsal to the cerebellum and a thin left posterior suptratentorial subdural hematoma. There are also multiple foci of susceptibility effect over the cerebral convexities within sulci superiorly as well as within the superior vermis compatible with subarachnoid hemosiderin deposition. There is cortical and parenchymal decreased diffusion within the right and possibly left occipital lobes, bilateral parietal lobes, right greater than left, and minimally within the bilateral frontal lobes as well as prominent diffusion restriction within the splenium. There is no evidence of mass. The myelination pattern is appropriate for age. The ventricles and basal cisterns are normal in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact. The skull, paranasal sinuses, and scalp soft tissues are unremarkable. There is minimal fluid within the mastoid air cells and right middle ear. The midline structures and craniocervical junction are within normal limits.
1.Bilateral subdural hematomas without midline shift with components of different ages of blood as well as components of subarachnoid blood. 2.Multiple patchy foci of supratentorial cortical and parenchymal decreased diffusion may represent traumatic axonal injury or anoxic injury and are not in an arterial distribution. 