Items tagged “middle ear”

18 results found
Article

Acquired cholesteatoma

Acquired cholesteatomas make up 98% of all middle ear cholesteatomas and are almost always closely related to the tympanic membrane and pneumatized portion of the temporal bone from which most are thought to arise 9.  Clinical presentation The vast majority of acquired cholesteatomas develop a...
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
Frank Gaillard
Published 26 Jan 2009
71% complete
CT
Case

Bilateral otosclerosis with left stapes prosthesis

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

Cholesteatoma

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

Cholesteatoma formation (illustrations)

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

Dehiscent jugular bulb

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

Auditory anatomy - Gray's anatomy illustration

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

Recurrent cholesteatoma

  Diagnosis certain
Erik Ranschaert
Published 17 Sep 2010
95% complete
CT MRI
Article

Tensor tympani muscle

The tensor tympani muscle is a small slender muscle in the middle ear that dampens excessive sound vibrations by tensing the tympanic cavity via the malleus. Gross anatomy The muscle arises from the superior surface of the cartilaginous part of the Eustachian tube, the greater wing of the sphe...
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
Mostafa Elfeky
Published 19 Jul 2017
80% complete
MRI
Case

Bilateral cholesteatoma

  Diagnosis almost certain
Mostafa Elfeky
Published 07 Aug 2017
78% complete
MRI CT
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

Jugular paraganglioma

  Diagnosis probable
Andrés Morfin Vela
Published 20 Apr 2019
70% complete
CT MRI
Article

Suspensory ligaments of the middle ear ossicles

The suspensory ligaments of the middle ear ossicles are ligaments within the middle ear which attach the ossicles to the walls of the mesotympanum 1. The ligaments help the ossicles transmit sound from the tympanic membrane to the oval window. Gross anatomy Origins and insertions of the suspen...