Clinical question: Remote ischemia. Signs and symptoms: Lower extremity weakness. Nonenhanced head CT:There is no evidence of intracranial hemorrhage, edema, mass effect, midline shift or hydrocephalus. CT is insensitive for early detection of acute ischemic strokes. If clinical concern persists an MRI examination is recommended.The cortical sulci, ventricular system, CSF cisterns and gray -- white matter differentiation remains within normal.Calvarium is intact.Mastoid air cells and middle ear cavities are unremarkable and well pneumatized.Extensive bilateral ethmoid sinus disease and near complete opacification of right maxillary sinus a been limited view of paranasal sinuses.
1.No evidence of acute intracranial findings. Please see above comments.2.Extensive chronic sinus disease.