Female, 19 years old, with five episodes of loss of consciousness since June 2015, possibly secondary to seizures, sometimes associated with bilateral lower extremity shaking. The cerebral and cerebellar hemispheres and brainstem show normal signal intensity and morphology. No restricted diffusion is seen. No pathologic parenchymal or extra-axial enhancement is detected.No evidence of parenchymal edema, mass, or mass effect is seen. There is no evidence of intracranial hemorrhage or abnormal extra-axial fluid. The ventricular system is normal in caliber and morphology. On dedicated MR imaging of the brain, the major intracranial vessels are well visualized. No significant stenosis or occlusion is detected. No aneurysms are seen.Signal intensity of the bone marrow is unremarkable. No significant abnormalities of the paranasal sinuses are detected.
Unremarkable MRI and MRA evaluation of the brain. No specific findings are seen which would account for the patient's symptoms.