Reason: assess for pathologic History: hearing loss. Left-sided sensorineural hearing loss. There is no evidence of intracranial hemorrhage, mass, or acute infarct. The brain parenchyma and pituitary gland appear unremarkable. There is no abnormal intracranial enhancement. A cavum septum pellucidum and vergae are noted. The ventricles and basal cisterns are otherwise normal in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact. The orbits, skull, paranasal sinuses, and scalp soft tissues are grossly unremarkable.The internal auditory canals appear normal without evidence of mass. The facial, cochlear and vestibular nerves are identified bilaterally and appear within normal limits. The apical and middle turns of the cochlea are not well differentiated as seen on CT of the same day. The vestibule and semicircular canals are symmetric bilaterally. vestibular aqueducts are better evaluated on CT of the same day. No fluid is evident within the mastoid air cells.
1.Normal-appearing facial, cochlear and vestibular nerves.2.Apical and middle turns of the cochlea are not well differentiated and mildly dysplastic bilaterally. For further details, please see temporal bone CT performed on the same day.