Attic Retraction Ct

Download citation a tiny retraction of the pars flaccida may conceal an attic cholesteatoma objective the purpose of this study was to evaluate the possibility of attic cholesteatomas.

Attic retraction ct.

We describe and quantify the ct appearance of the auto atticotomy cavity as it pertains to the. The pertinent anatomy is described and the role of the tympanic diaphragm and isthmus in determining the degree to which middle ear disease may progress is stressed. The retraction can be subdivided based on severity 1. Audiologic examination revealed conductive hearing loss.

Attic retraction pocket in the left ear white arrow with atelectatic prussak s space red circle and eroded scutum yellow arrow. The appearances on ct scans of chronic otomastoiditis tympanosclerosis cholesterol granuloma attic retraction pocket and acquired cholesteatoma are reviewed and illustrated. Cholesteatomas appear as regions of soft tissue attenuation exerting mass effect and resulting in bony erosion. Five years after the initial examination otoscopic examination revealed an intact tympanic membrane with a tiny attic retraction fig.

In 26 of 28 ears with attic retraction pockets at least a portion of attic was aerated and in 22 of these 26 ears the mastoid antrum was also aerated. As the tympanic membrane is pulled inwards medially it can become draped over the ossicles resulting in a variety of symptoms. 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. In contrast in the 25 cases with attic cholesteatomas these numbers decreased to 10 and 5 respectively and the lack of aeration of the attic was demonstrated in 15 of 25 60 of the cases.

An acquired attic cholesteatoma may spontaneously drain externally into the external auditory canal leaving a cavity in the attic with the shape of the original cholesteatoma but now filled with air a phenomenon referred to as nature s atticotomy or auto atticotomy. 2c and a follow up temporal bone ct scan showed a soft tissue density lesion in the lateral and superior portions of the incudomallear joint fig. In 26 of 28 ears with attic retraction pockets at least a portion of attic was aerated and in 22 of these 26 ears.