Clinical question: Rule out stroke. Signs and symptoms: As above. Nonenhanced brain MRI:Diffusion-weighted images demonstrate no evidence of an acute ischemic stroke.Unremarkable cerebral cortex, cortical sulci, ventricular system, CSF spaces and brain myelination for patient's stated age of 32.The signal void of major intracranial arterial branches are identified.The signal intensity of intracranial venous sinuses are within normal.Unremarkable images through the orbits.Unremarkable calvarium and soft tissues of the scalp.Mild chronic sinusitis is noted.Bilateral mastoid air cells and middle ear cavities demonstrate normal pneumatization signal pattern.
Unremarkable nonenhanced brain MRI.