Clinical question: 26-year-old female with unilateral headache, worsening and increasing photophobia/blind spots. Signs and symptoms: As above. Pre- and post enhanced brain MRI:No diffusion-weighted abnormalities.Examination demonstrate normal anatomical morphology of the brain with normal signal intensity on all MRI sequences.Unremarkable cerebral cortex, cortical sulci, ventricular system, CSF spaces and grade-white matter differentiation/brain myelination.Negative post enhanced images for any detectable abnormal enhancement of brain parenchyma, leptomeninges, calvarium or the retro-orbital spaces.Normal visualization of signal void of major intracranial arterial branches.All paranasal sinuses and bilateral mastoid air cells and middle ear cavities demonstrate normal pneumatization signal patterns.
Negative pre and post enhanced brain MRI.