Clinical question: Evaluate for brain inflammation. Signs and symptoms: History of usual snow. Pre-and post-enhanced brain MRI:Negative diffusion weighted series.The anatomical morphology and signal intensity of brain parenchymal remains within normal on all MRI sequences. The cerebral cortex, cortical sulci, ventricular system, CSF spaces in myelination the brain is unremarkable.There is no evidence of cerebral edema as is questioned clinically.Post enhanced images also fail to demonstrate any abnormal parenchymal or leptomeningeal enhancement.Calvarium and soft tissues of the scalp are unremarkable and without abnormal enhancement.Images through the orbits and including axial fat sat post enhanced series are unremarkable.All paranasal sinuses and bilateral mastoid air cells and middle ear cavities demonstrate normal pneumatization signal patterns.
Negative pre-and post enhanced brain MRI.