High Resolution Computed Tomography Imaging Findings in Chronic Otitis Media With and Without Cholesteatoma; [Kolesteatomlu ve Kolesteatomsuz Kronik Otitis Mediada Yüksek Rezolüsyonlu Bilgisayarlı Tomografi Bulguları]

Kul M.Yilmazer Zorlu S.N.Özalp Ateş F.S.Ünal S.2024-07-222024-07-22202313006525http://akademikarsiv.cbu.edu.tr:4000/handle/123456789/12195Objective: To correlate high-resolution computed to-mography (HRCT) imaging findings of chronic otitis media (COM) with and without cholesteatoma regarding the presence, site, and severity of bone defects. Material and Methods: Temporal bone HRCT images of patients with COM, obtained between 2011 and 2022, were retrospectively reviewed. Patients with a soft tissue mass in the tympanic cavity were allocated into either COM with cholesteatoma (CH+COM) or without cholesteatoma group (CH-COM) based on pathology results and-/or magnetic resonance imaging findings. Computed tomography images were analyzed with regard to the presence, site, and severity of middle ear bone erosions/defects and group comparisons were made. Results: A total of 60 patients (CH+COM: 23 patients, CH-COM: 37 patients) were included. Blunting of the scutum, defect of the tegmen tympani, absence/incompleteness of the Körner's septum, erosion of the ossicular chain, and destruction of the medial and lateral tympanic walls were significantly more frequent in the CH+COM group (p<0.05). While small bone discontinuities (≤2 mm) of the tegmen tympani or blunting of the scutum were present in both groups, a greater defect of these structures was observed only in the CH+COM group. No significant difference was detected neither regarding the location of the soft tissue masses nor the presence of posterior wall defects (p>0.05). Con-clusion: Radiologists should be aware of bone erosions when evaluat-ing temporal bone HRCT images of patients with COM, even if cholesteatoma is not suspected. Furthermore, reporting the severity of bone destruction could be a helpful hint regarding the presence of cholesteatoma and might impact surgical planning. © 2023 Turkey Association of Society of Ear Nose Throat and Head Neck Surgery. Production and hosting by Türkiye Klinikleri.EnglishAll Open Access; Gold Open AccessHigh Resolution Computed Tomography Imaging Findings in Chronic Otitis Media With and Without Cholesteatoma; [Kolesteatomlu ve Kolesteatomsuz Kronik Otitis Mediada Yüksek Rezolüsyonlu Bilgisayarlı Tomografi Bulguları]Article10.24179/kbbbbc.2023-96825