Evaluate for etiology of dizziness, nystagmus. History of diabetes and hypertension. Brain MRI: There is no evidence of intracranial hemorrhage, mass, or acute infarct. There is mild scattered foci of cerebral white matter T2 hyperintensity, most of which are attributable to prominent perivascular spaces. There is no abnormal intracranial enhancement. The ventricles and basal cisterns are normal in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact. The orbits, skull, and scalp soft tissues are grossly unremarkable. There is mild scattered paranasal sinus mucosal thickening.Brain MRA: There is a fetal right posterior cerebral artery, which is an anatomic variant. There is no evidence of significant steno-occlusive lesions or cerebral aneurysms.Neck MRA: The bilateral internal carotid arteries are tortuous, with redundant looping of the right side. There is no evidence of significant steno-occlusive lesions.
1. No evidence of acute intracranial hemorrhage, mass, or acute infarct.2. No evidence of significant steno-occlusive arterial lesions in the head and neck.3. The bilateral internal carotid arteries are tortuous, with redundant looping of the right side, which may be attributable to hypertension.