Episodic vertigo, left ear fullness, left tinnitus. Brain MRI: There is no evidence of intracranial hemorrhage, mass, or acute infarct. The brain parenchyma appears unremarkable. However, the cerebellar tonsils extend up to 6 mm inferior to the foramen magnum and the posterior fossa appears to be relatively small. The ventricles and basal cisterns are normal in size and configuration. There is no midline shift. The major cerebral flow voids are intact. The orbits, skull, paranasal sinuses, and scalp soft tissues are grossly unremarkable.Brain MRA: There is no evidence of significant steno-occlusive lesions or aneurysms.Neck MRA: There is no evidence of significant steno-occlusive lesions.
1. No evidence of acute intracranial hemorrhage, mass, or acute infarct.2. Findings suggestive of mild Chiari I malformation.3. No evidence of head and neck arterial lesions.