Female, 3 years old, history of bilateral sensorineural hearing loss. Pre-cochlear implantation evaluation. The cerebral and cerebellar hemispheres and brainstem show normal signal intensity and morphology. No restricted diffusion is seen.No evidence of parenchymal edema, mass, or mass effect is seen. There is no evidence of intracranial hemorrhage or abnormal extra-axial fluid. The ventricular system is normal in caliber and morphology. Signal intensity of the bone marrow is unremarkable. No significant abnormalities of the paranasal sinuses are detected.No masslike lesions are seen in the IACs. The vestibules and semicircular canals demonstrate a normal MRI morphology. Cochlear morphology, however, was better assessed on temporal bone CT. Cochlear nerves are evident bilaterally entering the cochlear apertures.
1.No specific findings are seen to account for the patient's hearing loss. Please note that cochlear morphology was better assessed on dedicated temporal bone CT imaging.2.Cochlear nerves are present bilaterally.