This may include a ct scan to see whether the cholesteatoma has spread and which parts of your ear are affected.
Attic cholesteatoma ct.
Cholesteatoma is a destructive and expanding growth consisting of keratinizing squamous.
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.
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.
The hallmarks of the cholesteatoma on ct scan are based on the presence of one or more of the following.
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.
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.
This case represents mri imaging features of bilateral acquired cholesteatoma with marked diffusion restriction and bone destruction.
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 will need to be removed.
Ct gives information about the relationship to the ossicles tegmen tympani erosion potential membranous labyrinth fistula the facial nerve canal erosions.
Treating a cholesteatoma surgery.
Ct is the modality of choice for detailed anatomical structure extension and erosion.
To remove a cholesteatoma you usually need to have surgery under general anaesthetic.
Ct is required for preoperative planning reconstruction of ossicles if needed and to exclude perforation of the bony tegmen.
The attic is just.
Cholesteatomas appear as regions of soft tissue attenuation exerting mass effect and resulting in bony erosion.
Non ionizing radiation imaging techniques may be suitable to replace a ct scan if determined necessary by your.
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.
A cholesteatoma is an abnormal noncancerous skin growth that can develop in the middle section of your ear behind the eardrum.
If the cholesteatoma has been dry the cholesteatoma may present the appearance of wax over the attic.
Although a cholesteatoma is histologically identical to an epidermoid or epidermal.
After the cholesteatoma has been taken out your ear may be packed with a dressing.
