 Brain MRI:There is no evidence for intracranial hemorrhage or acute cerebral, brainstem or cerebellar infarction. No diffusion-weighted abnormalities are identified. A punctate focus of FLAIR signal in the left frontal white matter adjacent to the insula is unchanged and non-specific. There is no other significant parenchymal lesion or abnormal enhancement. The ventricles and sulci are normal in size. The cerebellar tonsils are in normal position. There is no mass effect or midline shift. The pituitary gland is normal in size. There are no extraaxial fluid collections or subdural hematomas. The paranasal sinuses and mastoid air cells are clear. Brain MRA: There is antegrade flow within the distal bilateral vertebral arteries, within the basilar artery, distal bilateral internal carotid arteries and carotid siphons and bilateral anterior, middle and posterior cerebral arteries. No arterial stenoses, occlusions or aneurysms are identified. No arteriovenous malformations are identified.
1. No specific intracranial findings to account for the patient's symptoms. 2. Normal MRA of the brain.