It often develops as a cyst that sheds layers of old skin and may.
Cholesteatoma attic ct.
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.
After the cholesteatoma has been taken out your ear may be packed with a dressing.
Ct scan computerized tomography.
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.
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.
Cholesteatoma is not a neoplasm and can be thought of most simply as skin in the wrong place.
Often presents with a malodorous ear discharge with associated hearing loss.
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.
This can tell your doctor.
This may include a ct scan to see whether the cholesteatoma has spread and which parts of your ear are affected.
Cholesteatoma is an accumulation of squamous epithelium and keratin debris that usually involves the middle ear and mastoid.
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.
This will need to be removed.
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.
The attic is just above the eardrum.
Although benign it may enlarge and invade adjacent bone.
Diagnosis is clinical based on histor.
Treating a cholesteatoma surgery.
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.
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.
If the cholesteatoma has been dry the cholesteatoma may present the appearance of wax over the attic.
To remove a cholesteatoma you usually need to have surgery under general anaesthetic.
