The attic is just.
Attic cholesteatoma ct.
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.
It often develops as a cyst that sheds layers of old skin and may.
This will need to be removed.
This case represents mri imaging features of bilateral acquired cholesteatoma with marked diffusion restriction and bone destruction.
The hallmarks of the cholesteatoma on ct scan are based on the presence of one or more of the following.
Cholesteatomas appear as regions of soft tissue attenuation exerting mass effect and resulting in bony erosion.
Ct is the modality of choice for detailed anatomical structure extension and erosion.
Ct gives information about the relationship to the ossicles tegmen tympani erosion potential membranous labyrinth fistula the facial nerve canal erosions.
Non ionizing radiation imaging techniques may be suitable to replace a ct scan if determined necessary by your.
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.
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.
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 the cholesteatoma has been dry the cholesteatoma may present the appearance of wax over the attic.
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.
Cholesteatoma is a destructive and expanding growth consisting of keratinizing squamous.
To remove a cholesteatoma you usually need to have surgery under general anaesthetic.
Although a cholesteatoma is histologically identical to an epidermoid or epidermal.
This may include a ct scan to see whether the cholesteatoma has spread and which parts of your ear are affected.
After the cholesteatoma has been taken out your ear may be packed with a dressing.
Ct is required for preoperative planning reconstruction of ossicles if needed and to exclude perforation of the bony tegmen.
1 nondependent soft tissue density mass associated with attic mesotympanum or antrum 2 typical location and 3 bony erosion of the middle ear bony walls ie scutum attic wall tympanic spine tegmen sigmoid sinus plate korner s.
