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10 - CT findins of complicated middle ear cholesteatomas
İrfan Çelebi, Ender Uysal,Muzaffer Başak, Gülten Aydın,Suat Turgut
Objective: CT imaging findings in temporal bones of the patients with secondary cholesteatomas were studied.
Study Design: This retrospective study is carried out in 25 patients with acquired cholesteatoma who were underwent otological surgery in Sisli Etfal Research and Education Hospital between March 1999 and May 2001 .In all cases, axial and coronal images with 2 mm slice thickness was taken.Ossicles, tegmen , labyrinth, sigmoid sinus plate and fascial canal was evaluated.
Results: In 20 cases ossicular destruction, in 5 cases labyrinthine fistula, in 4 cases facial canal destruction, in3 cases sigmoid s inuse plate erosion and in 2 cases tegmen destruction was detected on CT scans.In 1 case, there is extension of chlolesteatoma into the petrous apex.
Conclusion: Erosion of the tegmen, labyrinth, sigmoid sinus plate, facial nerve canal and ossicles can be best evaluated on CT scans
Keywords: Complicated cholesteatomas , CT imaging
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