Concussion followed by vomiting and suggestion of complex partial seizure. There is artifact related to the left external ear or retroauricular region that is most pronounced on diffusion and susceptibility-weighted imaging. Accounting for that, there is no evidence of intracranial hemorrhage, mass, or acute infarct. Myelination is appropriate for age. The brain parenchyma and pituitary gland appear unremarkable. 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 orbits, skull, paranasal sinuses, and scalp soft tissues are grossly unremarkable.
No evidence of acute intracranial hemorrhage, mass, or acute infarct.