Clinical question: Rule out structural lesion. Signs and symptoms: Seizure. Pre and post enhanced brain MRI:No diffusion-weighted abnormalities.Examination demonstrate normal anatomical morphology of brain parenchyma and with normal signal intensity on all MRI sequences.Note however is made of punctate foci of nonspecific FLAIR hyperintensity in the subcortical white matter of left hemisphere.Unremarkable cerebral cortex, cortical sulci, ventricular system, CSF spaces and brain myelination.Post contrast images demonstrate no detectable abnormal parenchymal or leptomeningeal enhancement.The signal void of major intracranial arterial branches are identified.The signal intensity of intracranial venous sinuses are within normal and mid normal pattern of enhancement.Unremarkable calvarium and orbits without abnormal enhancement.All the paranasal sinuses and bilateral mastoid air cells and middle ear cavities demonstrate normal pneumatization signal patterns.
Unremarkable pre and post enhanced brain MRI.