Exostosis of the internal auditory canal

1988 ◽  
Vol 102 (2) ◽  
pp. 173-175 ◽  
Author(s):  
Huynh T. Doan ◽  
James S. Powell
Keyword(s):  
Hearing Loss ◽  
External Auditory Canal ◽  
Internal Auditory Canal ◽  
Progressive Hearing Loss

AbstractAlthough exostoses of the external auditory canal are not uncommon, those of the internal canal are extremely rare. One of these is described occurring in a 53-year-old man whose rapidly progressive hearing loss was without any associated abnormality.

Acoustic Schwannoma Presenting as a Tumor of the External Auditory Canal

1987 ◽  
Vol 96 (4) ◽  
pp. 415-418 ◽  
Author(s):  
Patrice Tran Ba Huy ◽  
Jean Michel Hassan ◽  
Michel Wassef ◽  
Jacqueline Mikol ◽  
Claude Thurel
Keyword(s):  
Hearing Loss ◽  
External Auditory Canal ◽  
Cerebellopontine Angle ◽  
Internal Auditory Canal ◽  
Unilateral Hearing Loss ◽  
Acoustic Neurinoma ◽  
History Of ◽  
Acoustic Schwannoma ◽  
Initial Episode ◽  
Central Compensation

An acoustic neurinoma involving the internal auditory canal, the vestibule, the cochlea, the middle ear, and extending into the cerebellopontine angle and the external auditory canal, is described in a 56-year-old woman. An initial episode of vertigo was followed by a 27-year history of progressive unilateral hearing loss leading to complete deafness and areflexia with central compensation. The tumor was removed by a two-step surgical procedure, and the histologic features were those of a schwannoma.

scholarly journals Bilateral Dilatation of the Internal Auditory Canal with Progressive Hearing Loss and Other Complications.

2002 ◽  
Vol 95 (1) ◽  
pp. 9-14
Author(s):  
Masako MIURA ◽  
Hiroaki SHIMOGORI ◽  
Tomoko Nakano ◽  
Hiroshi YAMASHITA ◽  
Shiro KASHIWAGI
Keyword(s):  
Hearing Loss ◽  
Internal Auditory Canal ◽  
Progressive Hearing Loss

scholarly journals Meningioma of the Internal Auditory Canal With Rapidly Progressive Hearing Loss

2011 ◽  
Vol 51 (3) ◽  
pp. 233-235 ◽  
Author(s):  
Tatsuya ISHIKAWA ◽  
Takakazu KAWAMATA ◽  
Akitsugu KAWASHIMA ◽  
Kohji YAMAGUCHI ◽  
Osami KUBO ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Internal Auditory Canal ◽  
Progressive Hearing Loss

Nervus intermedius meningioma

2014 ◽  
Vol 128 (6) ◽  
pp. 543-546 ◽  
Author(s):  
B Rodgers ◽  
R Chamoun ◽  
K Newell ◽  
J Lin
Keyword(s):  
Magnetic Resonance Imaging ◽  
Hearing Loss ◽  
Facial Nerve ◽  
Cerebellopontine Angle ◽  
Internal Auditory Canal ◽  
Histological Evaluation ◽  
Resonance Imaging ◽  
Progressive Hearing Loss ◽  
Operative Monitoring ◽  
Nervus Intermedius

AbstractObjective:To report a case of meningioma arising from the nervus intermedius.Methods:This paper comprises a case report, literature review, and discussion regarding the presentation of a nervus intermedius meningioma, comparing and contrasting this to other relevant neoplasms of the internal auditory canal and cerebellopontine angle.Results:Tumours of the cerebellopontine angle include vestibular schwannomas, facial schwannomas and, more rarely, nervus intermedius schwannomas. The nervus intermedius is a division of the facial nerve at the cerebellopontine angle, with parasympathetic and afferent somatic components. Our patient presented with progressive hearing loss. An ipsilateral internal auditory canal mass at the fundus, as indicated by magnetic resonance imaging and electroneuronography, was suggestive of vestibular schwannoma. Intra-operative dissection revealed a nervus intermedius tumour. Histological evaluation indicated a meningioma rather than a schwannoma.Conclusion:This is the first reported case of meningioma involving the nervus intermedius. The implications this pathology may have on surgical approach, facial nerve outcomes, and the need for improved pre-operative imaging and intra-operative monitoring are discussed. A review of the current literature on nervus intermedius tumour is provided.

scholarly journals Progressive hearing loss in a rare case of ceruminous pleomorphic adenoma of the external auditory canal

2021 ◽  
pp. 100300
Author(s):  
Emanuele Ferri ◽  
Antonella Loperfido ◽  
Francesca Boscolo Nata ◽  
Giovanni Cristalli
Keyword(s):  
Hearing Loss ◽  
Pleomorphic Adenoma ◽  
External Auditory Canal ◽  
Rare Case ◽  
Progressive Hearing Loss

Hearing Outcome of Stapes Surgery in NIENT, Bangladesh

2020 ◽  
Vol 26 (1) ◽  
pp. 31-36
Author(s):  
Md Zakaria Sarkar ◽  
AHM Ferdows Nur ◽  
Utpal Kumar Dutta ◽  
Muhammad Rafiqul Islam ◽  
Debabrota Roy ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Cross Sectional Study ◽  
Surgical Trauma ◽  
Group 14 ◽  
Progressive Hearing Loss ◽  
Cross Sectional ◽  
Hearing Gain ◽  
Hearing Outcome

Objective: The aim of this study was to evaluate hearing outcome after stapedotomy in patients with Otosclerosis. Methods: This cross sectional study was carried out from July 2017 to January 2019 in National Institute of ENT, Unit V. About 22 patients with Otosclerosis were included in this study. Diagnosis of Otosclerosis was based on the history, medical status with Otoscopy, Tuning fork tests and Audiometric tests. We compiled data on the pre and post operative air-bone gap (ABG) at 0.5, 1, 2 KHZ. The ABG was Calculated using AC and BC thresholds on the same audiogram. Post operative hearing gain was then Calculated from the ABG before the operation minus the ABG of the last follow up examination Results: In this study most of the cases were age group 14-30 years (72.7%), female (54.5%). Most common symptoms was progressive hearing loss, tinnitus (77.8%).The average preoperative hearing loss in this study was (AC) was 48.31±7.68. The average post opt. hearing (AC) at follow up was 28.95±10.30 with an average hearing gain of 15.40±8.53 dB which was significant. The average pre-operative ABG was 28.99 dB ± 8.10. The average post opt. ABG was analyzed at 1 follow up showed ABG 13.18±8.09 dB which was found to be significant. Conclusion: Stapedotomy is an effective surgical procedure for the treatment of otosclerosis which leads to improvement in patient’s quality of life. A favorable hearing outcome can be obtained by the combination of experienced hands with minimal surgical trauma and appropriate surgical technique. Bangladesh J Otorhinolaryngol; April 2020; 26(1): 31-36

scholarly journals Cochlear Nerve Canal Stenosis: Association With MYH14 and MYH9 Genes

2021 ◽  
pp. 014556132199683
Author(s):  
Wenqi Liang ◽  
Line Wang ◽  
Xinyu Song ◽  
Fenqi Gao ◽  
Pan Liu ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Next Generation Sequencing ◽  
Inner Ear ◽  
Internal Auditory Canal ◽  
Cochlear Nerve ◽  
Transverse Diameter ◽  
Congenital Hearing Loss ◽  
Canal Stenosis ◽  
Ear Anomalies ◽  
Generation Sequencing

The bony cochlear nerve canal transmits the cochlear nerve as it passes from the fundus of the internal auditory canal to the cochlea. Stenosis of the cochlear nerve canal, defined as a diameter less than 1.0 mm in transverse diameter, is associated with inner ear anomalies and severe to profound congenital hearing loss. We describe an 11-month-old infant with nonsyndromic congenital sensorineural hearing loss with cochlear nerve canal stenosis. Next-generation sequencing revealed heterozygous mutations in MYH9 and MYH14, encoding for the inner ear proteins myosin heavy chain IIA and IIC. The patient’s hearing was rehabilitated with bilateral cochlear implantation.

scholarly journals An unusual presentation of neurosarcoidosis with progressive hearing loss

2017 ◽  
Vol 28 ◽  
Author(s):  
Abdellah Taous ◽  
Maha Aït Berri ◽  
Mohamed Sinaa ◽  
Issam En-nafaa ◽  
Karim Nadour ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Unusual Presentation ◽  
Progressive Hearing Loss
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