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
Published
09 Feb 2009
74% complete
CT
Diagram
Case
Bilateral Mondini malformations
Published
13 Feb 2009
74% complete
CT
Case
Retrofenestral otosclerosis
Published
18 Feb 2009
80% complete
CT
Case
Enlarged vestibular aqueducts
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
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
Published
13 Nov 2010
84% complete
MRI
CT
Case
Cochlear implant
Published
15 Dec 2010
59% complete
CT
Case
Superior semicircular canal dehiscence
Published
29 Dec 2010
89% complete
CT
Case
Michel defect
Published
18 Feb 2012
56% complete
CT
Case
Labyrinthitis ossificans
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
Published
23 Jul 2013
83% complete
CT
Case
Facial nerve anatomy - labeled CT
Published
30 Apr 2014
36% complete
CT