Congenital sensorineural hearing loss, in which the right ear appears to be decreasing in hearing sensitivity and the left ear is fluctuating. Right Interval Auditory Canal: There is mild enlargement of the endolymphatic duct. There also appears to be slight deficiency of the modiolus and septation of the cochlea. The semicircular canals and vestibule appear to be intact. The bilateral cranial nerve 7 and 8 complexes are intact. There is no evidence of mass lesions.Left Interval Auditory Canal: There is enlargement of the endolymphatic duct and sac. There also appears to be slight deficiency of the modiolus and septation of the cochlea. The semicircular canals and vestibule appear to be intact. The bilateral cranial nerve 7 and 8 complexes are intact. There is no evidence of mass lesions.Brain: 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. 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.
1. Bilateral enlarged vestibular aqueduct syndrome, left more pronounced than right, with features suggestive of mild cochlear involvement associated with incomplete partition type 2.2. No evidence of intracranial hemorrhage, mass, or acute infarct.