Attic Cholesteatoma Ct

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.

Attic cholesteatoma ct.

Cholesteatomas appear as regions of soft tissue attenuation exerting mass effect and resulting in bony erosion. 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. To remove a cholesteatoma you usually need to have surgery under general anaesthetic. Ct is the modality of choice for detailed anatomical structure extension and erosion.

Cholesteatoma is not a neoplasm and can be thought of most simply as skin in the wrong place. The attic is just. Treating a cholesteatoma surgery. 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.

Although a cholesteatoma is histologically identical to an epidermoid or epidermal. 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. It often develops as a cyst that sheds layers of old skin and may. A cholesteatoma is an abnormal noncancerous skin growth that can develop in the middle section of your ear behind the eardrum.

After the cholesteatoma has been taken out your ear may be packed with a dressing. 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. If the cholesteatoma has been dry the cholesteatoma may present the appearance of wax over the attic.

Non ionizing radiation imaging techniques may be suitable to replace a ct scan if determined necessary by your. Cholesteatoma is a destructive and expanding growth consisting of keratinizing squamous. This may include a ct scan to see whether the cholesteatoma has spread and which parts of your ear are affected. 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.

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 required for preoperative planning reconstruction of ossicles if needed and to exclude perforation of the bony tegmen.