Clinical question: Rule out cause of headache. Signs and symptoms: Migraines, epistaxis. Nonenhanced brain MRI:Negative diffusion weighted series.There is normal anatomical morphology and development of brain and with normal signal intensity on all MRI sequences.Unremarkable CT 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 appear normal on this nonenhanced exam.Calvarium and soft tissues of the scalp are unremarkable.Unremarkable images through the orbits, paranasal sinuses and mastoid air cells.
Unremarkable nonenhanced brain MRI.