Items tagged “inner ear”

26 results found
Article

Otosclerosis

Otosclerosis, also known as otospongiosis, is a primary osteodystrophy of the otic capsule (bony labyrinth of the inner ear). It is one of the leading causes of deafness in adults. Terminology The term otosclerosis is somewhat of a misnomer. Much of the clinical course is characterized by luce...
Case

Fenestral otosclerosis

  Diagnosis almost certain
Frank Gaillard
Published 09 Feb 2009
74% complete
CT Diagram
Case

Bilateral Mondini malformations

  Diagnosis certain
Frank Gaillard
Published 13 Feb 2009
74% complete
CT
Case

Retrofenestral otosclerosis

  Diagnosis almost certain
Frank Gaillard
Published 18 Feb 2009
80% complete
CT
Case

Enlarged vestibular aqueducts

  Diagnosis certain
Frank Gaillard
Published 19 Feb 2009
95% complete
MRI
Article

Cochlear implant

Cochlear implants (CI) are surgically implanted electronic device that provides a sense of sound to a person who is profoundly deaf or severely hard of hearing. Unlike conventional hearing aids, the cochlear implant does not amplify sound but works by directly stimulating any functioning auditor...
Case

Cochlear aplasia

  Diagnosis certain
Frank Gaillard
Published 18 May 2009
62% complete
CT
Article

Intravestibular lipoma

Intravestibular lipomas are rare congenital fatty masses located in the vestibule of the inner ear.  Clinical presentation Patients usually present with sensorineural hearing loss.  Pathology Their pathogenesis is thought to be the same as that of other intracranial lipomas. Associations l...
Article

Fissula ante fenestram

The fissula ante fenestram (plural: fissula ante fenestras) is a small connective tissue-filled cleft in the otic capsule of the temporal bone, not typically visible on CT. The area around the fissula ante fenestram is the usual origin of fenestral otosclerosis. Gross anatomy The fissula ante ...
Article

Inner ear malformations (classification)

Inner ear malformations are a spectrum of congenital anomalies involving the inner ear structures with an emphasis on the cochlea due to their implications for sensorineural hearing loss. Classification An imaging-based classification was first proposed in 1987 by Jackler et al. according to p...
Article

Superior semicircular canal dehiscence syndrome

Superior semicircular canal dehiscence syndrome (SCDS) is an inner ear abnormality, where a clinical disequilibrium phenomenon is associated with the absence of the bony covering of the superior semicircular canal (SSCC). Notably, this CT finding has also been described in ~10% of individuals w...
Case

Labyrinthitis ossificans - bilateral

  Diagnosis certain
Hani Makky Al Salam
Published 13 Nov 2010
84% complete
MRI CT
Case

Cochlear implant

  Diagnosis certain
Frank Gaillard
Published 15 Dec 2010
59% complete
CT
Case

Superior semicircular canal dehiscence

  Diagnosis certain
Frank Gaillard
Published 29 Dec 2010
89% complete
CT
Case

Michel defect

  Diagnosis almost certain
Paresh K Desai
Published 18 Feb 2012
56% complete
CT
Case

Labyrinthitis ossificans

  Diagnosis almost certain
Bruno Costa Gomes
Published 14 Feb 2013
81% complete
CT MRI
Article

Labyrinthitis ossificans

Labyrinthitis ossificans, also known as labyrinthine ossification, represents pathological ossification of the membranous labyrinth as a response to an insult to the inner ear. Clinical presentation It is usually associated with profound sensorineural hearing loss, and may sometimes be associa...
Article

Cochlear incomplete partition type III

Cochlear incomplete partition type III (IP-III) is the type of cochlear incomplete partition present in X-linked deafness, a rare, nonsyndromic, genetic cochlear anomaly associated with mixed conductive and sensorineural hearing loss. Terminology The genetic disorder goes by many names 8: X-l...
Case

Mondini malformation

  Diagnosis certain
Mohammad Taghi Niknejad
Published 23 Jul 2013
83% complete
CT
Case

Facial nerve anatomy - labeled CT

  Diagnosis not applicable
Matt Skalski
Published 30 Apr 2014
36% complete
CT

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