Four cases of acoustic neuromas with normal hearing.

In 95 percent of the cases, patients with acoustic neuromas will have some magnitude of hearing loss in the affected ear. This paper reports on four patients who had acoustic neuromas and normal hearing. Results from the case history, audiometric evaluation, auditory brainstem response (ABR), electroneurography (ENOG), and vestibular evaluation are reported for each patient. For all patients, the presence of unilateral tinnitus was the most common complaint. Audiologically, elevated or absent acoustic reflex thresholds and abnormal ABR findings were the most powerful diagnostic tools.

[1]  Brackmann De,et al.  Brainstem electric audiometry: acoustic neurinoma detection. , 1979 .

[2]  J. Clemis,et al.  Brain stem electric response audiometry in the differential diagnosis of acoustic tumors , 1979, The Laryngoscope.

[3]  M. Glasscock,et al.  Brain stem evoked response audiometry in a clinical practice. , 1979, The Laryngoscope.

[4]  Privatdozent Erlo Esslen.  The Acute Facial Palsies , 1977, Schriftenreihe Neurologie/Neurology Series.

[5]  D. Brackmann,et al.  1 Chapter 188 : Differential Diagnosis of Neoplasms of the Posterior Fossa , 2022 .

[6]  C. Sasaki,et al.  Delayed diagnosis and treatment of acoustic neuroma , 1989, The Laryngoscope.

[7]  F. Blumenthal,et al.  Evoked Electromyography and Idiopathic Facial Paralysis , 1983, Otolaryngology Head & Neck Surgery.

[8]  U. Fisch,et al.  Electroneurographic Evaluation of the Facial Nerve , 1984, The Annals of otology, rhinology, and laryngology.

[9]  F. Musiek,et al.  ABR Results in Patients with Posterior Fossa Tumors and Normal Pure-Tone Hearing , 1986, Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery.

[10]  M Fetter,et al.  Head-shaking nystagmus in patients with unilateral peripheral vestibular lesions. , 1987, American journal of otolaryngology.

[11]  J. Clemis,et al.  Special audiometric test battery in 121 proved acoustic tumors. , 1976, Archives of otolaryngology.

[12]  J. Goebel,et al.  Wireless CROS Versus Transcranial CROS for Unilateral Hearing Loss , 1995 .

[13]  H. Olivecrona.  Acoustic tumors. , 1967, Journal of neurosurgery.

[14]  G. Nager,et al.  Pathology of the Ear and Temporal Bone , 1993 .

[15]  J. Rock,et al.  Sensorineural hearing loss and the diagnosis of acoustic neuroma. , 1990, Henry Ford Hospital medical journal.

[16]  J. Goebel,et al.  Prevalence of Post-Headshake Nystagmus in Patients with Caloric Deficits and Vertigo , 1992, Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery.

[17]  S. Harner,et al.  Auditory Brain Stem Response Results from 255 Patients with Suspected Retrocochlear Involvement , 1982, Ear and hearing.