Clinical question: History of narcolepsy. New diagnosed generalized epilepsy, rule out brain pathology. Seizure two protocol. Signs and symptoms: As above. Nonenhanced brain MRI:No diffusion weighted abnormalities.There is normal anatomical morphology and signal intensity of brain parenchyma on all MRI sequences.The unremarkable cerebral cortex, cortical sulci, ventricular system, CSF spaces and brain myelination. There is no detectable abnormality on dedicated coronal images through the temporal lobes. The signal voids of major intracranial arterial branches are identified and unremarkable.The signal intensity of intracranial venous sinuses are normal.Unremarkable calvarium, soft tissues of the scalp, orbits, paranasal sinuses and mastoid air cells.
Negative nonenhanced brain MRI.