Cholesteatoma is an accumulation of squamous epithelium and keratin debris that usually involves the middle ear and mastoid.
Cholesteatoma attic ct.
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.
If untreated a cholesteatoma can eat into the three small bones located in the middle ear the malleus incus and stapes collectively called ossicles which can result in nerve deterioration.
Keywords temporal bone cholesteatoma middle ear external auditory canal introduction a cholesteatoma is a cystic mass filled with keratin and lined by stratified squamous epithelium.
This is a series of x ray images that show your doctor a detailed picture of the bones blood vessels and soft tissue inside your ear.
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.
Ct scan computerized tomography.
It often develops as a cyst that sheds layers of old skin and may.
After the cholesteatoma has been taken out your ear may be packed with a dressing.
Often presents with a malodorous ear discharge with associated hearing loss.
Ct through the temporal bone demonstrates a soft tissue mass in prussak s space which has eroded the scutum and erodes the ossicles and displaces them medially.
Although a cholesteatoma is histologically identical to an epidermoid or epidermal.
Ct is required for preoperative planning reconstruction of ossicles if needed and to exclude perforation of the bony tegmen.
This can tell your doctor.
A cholesteatoma is an abnormal noncancerous skin growth that can develop in the middle section of your ear behind the eardrum.
The mass extends superiorly into the attic and appears to have eroded through the tegmentum as well as through the fallopian canal of the facial nerve and perhaps the lateral semicircular canal.
When findings of the 13 year olds and 13 year olds were combined the commonest site of cholesteatoma was the attic 66 of 128 which is 51 6 followed by extension into mastoid 54 of 128 which is 43 2 subsequently followed by extension into the sinus tympani 33 of 128 which is 25 8.
Cholesteatoma is not a neoplasm and can be thought of most simply as skin in the wrong place.
Treating a cholesteatoma surgery.
Although benign it may enlarge and invade adjacent bone.
If the cholesteatoma has been dry the cholesteatoma may present the appearance of wax over the attic.
This will need to be removed.
Diagnosis is clinical based on histor.
To remove a cholesteatoma you usually need to have surgery under general anaesthetic.
