Clinical question: New onset of headache. Signs and symptoms: As above. Nonenhanced brain MRI:Negative diffusion weighted series.Examination demonstrates normal anatomical morphology of brain and with normal signal intensity on all MRI sequences.Unremarkable cerebral cortex, cortical sulci, ventricular system, CSF spaces and brain myelination.Signal void of major intracranial arterial branches are identified.The signal intensity of the intracranial venous sinuses are within normal limits.Calvarium and soft tissues of the scalp are unremarkable.Unremarkable images through the orbits.All the paranasal sinuses and bilateral mastoid air cells and middle ear cavities demonstrate normal pneumatization signal patterns.
Unremarkable nonenhanced brain MRI.