Episodic vertigo and nystagmus. BRAIN:There is no evidence of intracranial hemorrhage, mass, or acute infarct. The brain parenchyma and pituitary gland appear unremarkable. Specifically, there is no brainstem or cerebellopontine angle lesion. There is no midline shift, herniation or abnormal intracranial enhancement. The ventricles and basal cisterns are normal in size and configuration. Cerebellar tonsils are in normal position without evidence of Chiari malformation. The major cerebral flow voids are intact. There is minimal, worse on the right, mucosal thickening in the paranasal sinuses. The orbits, skull, and scalp soft tissues are grossly unremarkable. The adenoids are enlarged.INTERNAL AUDITORY CANALS:The bilateral cranial nerve 7 and 8 complexes are intact. There is no evidence of mass lesions. The inner ear structures, including the cochlea, vestibule, endolymphatic duct, and semicircular canals, appear unremarkable. The bilateral mastoid air cells and middle ears also appear unremarkable.
1.No evidence of intracranial mass, hemorrhage, or infarct.2.No abnormal mass or enhancement involving the brainstem, cerebellopontine angle cisterns, or inner ears.