Items tagged “middle ear”

18 results found
Article

Acquired cholesteatoma

Acquired cholesteatomas makeup 98% of all middle ear cholesteatomas and are almost always closely related to the tympanic membrane, from which most are thought to arise.  Clinical presentation The vast majority of acquired cholesteatomas develop as a result of chronic middle ear infection and ...
Article

Cholesterol granuloma

Cholesterol granuloma (CG), also sometimes called a chocolate cyst of the ear or blue domed cyst, is a special type of middle ear granulation tissue which is particularly prone to bleeding and is a frequent cause of a hemotympanum. Cholesterol granulomas represent the most common cystic lesion o...
Article

Middle ear effusion

Middle ear effusions are frequent in children due to prominent adenoids and horizontal Eustachian tubes. These do not require imaging, and can be treated expectantly / medically / surgically with tympanostomy tubes. Eustachian tube dysfunction is the accepted etiology, with resorption of air and...
Case

Cholesteatoma

 Diagnosis almost certain
Assoc Prof Frank Gaillard
Published 26 Jan 2009
71% complete
CT
Case

Bilateral otosclerosis with left stapes prosthesis

 Diagnosis almost certain
Assoc Prof Frank Gaillard
Published 05 Feb 2009
59% complete
CT
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 ...
Case

Cholesteatoma

 Diagnosis certain
Assoc Prof Frank Gaillard
Published 14 Apr 2010
83% complete
CT
Case

Cholesteatoma

 Diagnosis almost certain
Assoc Prof Frank Gaillard
Published 14 Apr 2010
77% complete
CT
Case

Cholesteatoma formation (illustrations)

 Diagnosis not applicable
Assoc Prof Frank Gaillard
Published 10 May 2010
29% complete
Diagram
Case

Dehiscent jugular bulb

 Diagnosis certain
Assoc Prof Frank Gaillard
Published 23 May 2010
56% complete
CT
Case

Auditory anatomy - Gray's anatomy illustration

 Diagnosis not applicable
Mr Gray's Illustrations
Published 19 Aug 2010
29% complete
Diagram
Case

Recurrent cholesteatoma

 Diagnosis certain
Dr Erik Ranschaert
Published 17 Sep 2010
95% complete
MRICT
Article

Tensor tympani muscle

The tensor tympani muscle is a short muscle in the middle ear that arises from the superior surface of the cartilaginous part of the Eustachian tube, the greater wing of the sphenoid, and the petrous part of the temporal bone. It passes into the protympanum of the tympanic cavity, covered by the...
Article

Innervation of the muscles of the middle ear (mnemonic)

A useful mnemonic to remember innervation of the muscles of the middle ear is: ST Mnemonic S: stapedius is supplied by a branch of the facial nerve - the Seventh cranial nerve. It is also the Smallest muscle in the body, and inserts onto the neck of Stapes. T: tensor tympani is supplied by a...
Case

Cholesteatoma

 Diagnosis almost certain
Dr Mostafa El-Feky
Published 19 Jul 2017
80% complete
MRI
Case

Bilateral cholesteatoma

 Diagnosis almost certain
Dr Mostafa El-Feky
Published 07 Aug 2017
78% complete
CTMRI
Article

Anterior epitympanic recess

The anterior epitympanic recess, also known as the supratubal recess, is a small discrete space in the epitympanum anterior to the malleus. It is separated from the epitympanum proper by the cog.  
Case

Glomus jugulare paraganglioma

 Diagnosis probable
Dr Andrés Morfin Vela
Published 20 Apr 2019
70% complete
MRICT

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