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Abnormality of the internal auditory canal

MedGen UID:: 866802
•Concept ID:: C4021155
•: Anatomical Abnormality

Synonym:	Abnormality of the internal acoustic meatus

HPO:	HP:0011384

Definition

An abnormality of the Internal acoustic meatus, i.e., of the canal in the petrous part of the temporal bone through which the cranial nerve VII and cranial nerve VIII traverse. [from HPO]

Term Hierarchy

GTR
MeSH

CClinical test, RResearch test, OOMIM, GGeneReviews, VClinVar

CROGVAbnormality of the internal auditory canal

Phenotypic abnormality
- Ear malformation
  - Abnormal ear morphology
    - Abnormality of the inner ear
      - Abnormal inner ear morphology
        Abnormality of the internal auditory canal
        Absent internal auditory canal
        Dilatated internal auditory canal
        Narrow internal auditory canal

Professional guidelines

PubMed

Feasibility of magnetic resonance imaging in the differential diagnosis of isolated acute audiovestibular loss.

Lee SJ, Lee SA, Kim BG, Hong HS, Lee JY, Lee JD
J Vestib Res 2018;28(5-6):385-391. doi: 10.3233/VES-190649. PMID: 30856134

Management of Cochlear Nerve Hypoplasia and Aplasia.

Freeman SR, Sennaroglu L
Adv Otorhinolaryngol 2018;81:81-92. Epub 2018 Apr 6 doi: 10.1159/000485542. PMID: 29794457

The clinical characteristics and treatment for sudden sensorineural hearing loss with vestibular schwannoma.

Lin C, Gong Q, Zuo W, Zhang R, Zhou A
Eur Arch Otorhinolaryngol 2015 Apr;272(4):839-842. Epub 2014 Jan 23 doi: 10.1007/s00405-014-2885-x. PMID: 24452772

See all (4)

Recent clinical studies

Etiology

Internal auditory canal volume in normal and malformed inner ears.

Bächinger D, Breitsprecher TM, Pscheidl A, Dhanasingh A, Mlynski R, Dazert S, Langner S, Weiss NM
Eur Arch Otorhinolaryngol 2023 May;280(5):2149-2154. Epub 2022 Oct 9 doi: 10.1007/s00405-022-07676-1. PMID: 36210370 Free PMC Article

Arachnoid Cysts of the Internal Auditory Canal: Multiplanar Magnetic Resonance Imaging With Audio-Vestibular Correlates.

Di Stadio A, Dipietro L, Messineo D, Ralli M, Ricci G, Greco A, Brenner MJ
Laryngoscope 2021 Oct;131(10):2323-2331. Epub 2021 Jun 21 doi: 10.1002/lary.29699. PMID: 34152614 Free PMC Article

Internal Auditory Canal Diverticula in Children: A Congenital Variant.

Muelleman TJ, Kavookjian H, Asmar J, Patel K, Nielsen D, Summers K, Tracy M, Noel-MacDonnell J, Staecker H, Ledbetter L, Weatherly R
Laryngoscope 2021 May;131(5):E1683-E1687. Epub 2020 Nov 17 doi: 10.1002/lary.29278. PMID: 33200834

Arachnoid cysts of the internal auditory canal: An underappreciated entity?

Ungar OJ, Franck M, Nadol JB, Santos F
Laryngoscope 2019 Jul;129(7):1667-1674. Epub 2018 Dec 8 doi: 10.1002/lary.27601. PMID: 30537076

Management of Cochlear Nerve Hypoplasia and Aplasia.

Freeman SR, Sennaroglu L
Adv Otorhinolaryngol 2018;81:81-92. Epub 2018 Apr 6 doi: 10.1159/000485542. PMID: 29794457

See all (183)

Diagnosis

Internal auditory canal volume in normal and malformed inner ears.

Some Remarks on Imaging of the Inner Ear: Options and Limitations.

Giesemann A, Hofmann E
Clin Neuroradiol 2015 Oct;25 Suppl 2:197-203. Epub 2015 Jul 8 doi: 10.1007/s00062-015-0422-y. PMID: 26153464

Bilateral malformation of the internal auditory canal: Atresia and contralateral transverse megacrest.

Ramírez-Camacho R, Berrocal JR, Arellano B
Otolaryngol Head Neck Surg 2001 Jul;125(1):115-6. doi: 10.1067/mhn.2001.115911. PMID: 11458231

Temporal bone imaging.

Casselman JW
Neuroimaging Clin N Am 1996 May;6(2):265-89. PMID: 8726907

The abnormal internal auditory canal: the diagnosis of acoustic neuroma.

Valvassori GE
Radiology 1969 Mar;92(3):449-59. doi: 10.1148/92.3.449. PMID: 4886891

See all (231)

Therapy

The misplaced cochlear implant electrode array.

Mehanna AM, Gamaleldin OA, Fathalla MF
Int J Pediatr Otorhinolaryngol 2019 Feb;117:96-104. Epub 2018 Nov 23 doi: 10.1016/j.ijporl.2018.11.027. PMID: 30579097

Isolated Internal Auditory Canal Diverticula: A Normal Anatomic Variant Not Associated with Sensorineural Hearing Loss.

Mihal DC, Feng Y, Kodet ML, Lohse CM, Carlson ML, Lane JI
AJNR Am J Neuroradiol 2018 Dec;39(12):2340-2344. Epub 2018 Nov 15 doi: 10.3174/ajnr.A5862. PMID: 30442698 Free PMC Article

X-linked Malformation and Cochlear Implantation.

Smeds H, Wales J, Asp F, Löfkvist U, Falahat B, Anderlid BM, Anmyr L, Karltorp E
Otol Neurotol 2017 Jan;38(1):38-46. doi: 10.1097/MAO.0000000000001253. PMID: 27779564

Common surgical pitfalls in the skull.

Keskil S, Gözil R, Calgüner E
Surg Neurol 2003 Mar;59(3):228-31; discussion 231. doi: 10.1016/s0090-3019(02)01038-8. PMID: 12681561

Asymmetrical internal auditory canals. A normal variant.

Lin SR, Lee KF, Stein GN, Lee I
Arch Otolaryngol 1973 Sep;98(3):164-9. doi: 10.1001/archotol.1973.00780020172006. PMID: 4742422

See all (43)

Prognosis

Otopathologic Abnormalities in CHARGE Syndrome.

da Costa Monsanto R, Knoll RM, de Oliveira Penido N, Song G, Santos F, Paparella MM, Cureoglu S
Otolaryngol Head Neck Surg 2022 Feb;166(2):363-372. Epub 2021 Apr 20 doi: 10.1177/01945998211008911. PMID: 33874787

Bony cochlear nerve canal and internal auditory canal measures predict cochlear nerve status.

Tahir E, Bajin MD, Atay G, Mocan BÖ, Sennaroğlu L
J Laryngol Otol 2017 Aug;131(8):676-683. Epub 2017 Jun 1 doi: 10.1017/S0022215117001141. PMID: 28566097

Some Remarks on Imaging of the Inner Ear: Options and Limitations.

Giesemann A, Hofmann E
Clin Neuroradiol 2015 Oct;25 Suppl 2:197-203. Epub 2015 Jul 8 doi: 10.1007/s00062-015-0422-y. PMID: 26153464

Neurotological parameters and prognosis of Bell's palsy patients.

Chung JH, Lee SK, Kim SH, Yeo SG, Park MS, Byun JY
Audiol Neurootol 2015;20(2):117-121. Epub 2015 Mar 4 doi: 10.1159/000369609. PMID: 25765097

Aberrant Course of the Internal Auditory Canal in Unilateral Sensorineural Hearing Loss.

Tsai MC, Chang WH
Otol Neurotol 2015 Sep;36(8):e136-7. doi: 10.1097/MAO.0000000000000478. PMID: 24979125

See all (85)

Clinical prediction guides

Internal Auditory Canal Diverticula in Children: A Congenital Variant.

Bilateral duplication of the internal auditory canals and bilateral cochlear implant outcomes and review.

Thompson MR, Birman CS
Int J Pediatr Otorhinolaryngol 2019 Apr;119:41-46. Epub 2019 Jan 12 doi: 10.1016/j.ijporl.2019.01.015. PMID: 30665175

Management of Cochlear Nerve Hypoplasia and Aplasia.

Freeman SR, Sennaroglu L
Adv Otorhinolaryngol 2018;81:81-92. Epub 2018 Apr 6 doi: 10.1159/000485542. PMID: 29794457

Bony cochlear nerve canal and internal auditory canal measures predict cochlear nerve status.

Tahir E, Bajin MD, Atay G, Mocan BÖ, Sennaroğlu L
J Laryngol Otol 2017 Aug;131(8):676-683. Epub 2017 Jun 1 doi: 10.1017/S0022215117001141. PMID: 28566097

X-linked Malformation and Cochlear Implantation.

Smeds H, Wales J, Asp F, Löfkvist U, Falahat B, Anderlid BM, Anmyr L, Karltorp E
Otol Neurotol 2017 Jan;38(1):38-46. doi: 10.1097/MAO.0000000000001253. PMID: 27779564

See all (99)

Recent systematic reviews

Spontaneous Congenital Perilabyrinthine Cerebrospinal Fluid Fistulas.

Lovin BD, Appelbaum EN, Makoshi L, Whitehead WE, Sweeney AD
Ann Otol Rhinol Laryngol 2021 Dec;130(12):1360-1368. Epub 2021 Apr 9 doi: 10.1177/00034894211007242. PMID: 33834882

Sudden hearing loss as an early detector of multiple sclerosis: a systematic review.

Di Stadio A, Dipietro L, Ralli M, Meneghello F, Minni A, Greco A, Stabile MR, Bernitsas E
Eur Rev Med Pharmacol Sci 2018 Jul;22(14):4611-4624. doi: 10.26355/eurrev_201807_15520. PMID: 30058696

See all (2)

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Abnormality of the internal auditory canal

Definition

Term Hierarchy

Professional guidelines

PubMed

Recent clinical studies

Etiology

Diagnosis

Therapy

Prognosis

Clinical prediction guides

Recent systematic reviews

Supplemental Content

Table of contents

Clinical resources

Practice guidelines

Consumer resources

Reviews

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