Case contributed by.
Cholesteatoma attic ct.
It may be a birth defect but it s most commonly caused by repeated.
The pars flaccida cholesteatoma originates in prussak space and usually extends posteriorly while the pars tensa cholesteatoma originates in the posterior mesotympanum and tends to extend posteromedially.
Cholesteatoma is an accumulation of squamous epithelium and keratin debris that usually involves the middle ear and mastoid.
The scutum and lateral attic wall were the most common bony erosions in the middle ear bony wall 64 3 and the incus was the most eroded ossicle in the middle ear 88 2.
Cholesteatoma is a destructive and expanding growth consisting of keratinizing squamous epithelium in the middle ear and or mastoid process.
As the cholesteatoma fills the aditus ad antrum the adjacent lateral semicircular canal is at risk.
A discrete soft tissue lesion is seen in middle ear cavity.
Diagnosis is clinical based on history and otoscopic findings.
The study showed that a high incidence of cholesteatoma in the third decade of life.
This case is a.
Cholesteatomas appear as regions of soft tissue attenuation exerting mass effect and resulting in bony erosion.
Ct is required for preoperative planning reconstruction of ossicles if needed and to exclude perforation of the bony tegmen.
Although benign it may enlarge and invade adjacent bone.
Upon reaching the posterolateral wall of the attic further expansion of the cholesteatoma is deflected superiorly toward the aditus ad antrum and mastoid antrum.
Here learn about the causes symptoms treatment and complications of a cholesteatoma.
Ct ct is the modality of choice for diagnostic assessment of cholesteatomas due to its ability to demonstrate the bony anatomy of the temporal bone in exquisite detail.
Axial bone window left sided otitis media reaching upto epitympanum and prussack s space and communicating with mastoid antrum with collection in mastoid air cells.
Often presents with a malodorous ear discharge with associated hearing loss.
Findings are characteristic of an acquired cholesteatoma.
A cholesteatoma is an abnormal noncancerous skin growth that can develop in the middle section of your ear behind the eardrum.
