Clinical question: Rule out hemorrhage. Signs and symptoms: Facial droop. Nonenhanced head CT:There is no detectable acute intracranial process. CT however is insensitive for detection of acute nonhemorrhagic ischemic stroke.Unremarkable cerebral cortex, cortical sulci, ventricular system, CSF spaces and gray -- white matter differentiation.Unremarkable calvarium and soft tissues of the scalp.Unremarkable orbits.All visualized paranasal sinuses and bilateral mastoid air cells/middle ear cavities are well pneumatized.
Negative nonenhanced head CT.