GIÁ TRỊ CỦA CẮT LỚP VI TÍNH XƯƠNG THÁI DƯƠNG TRONG CHẨN ĐOÁN MỘT SỐ BIẾN CHỨNG CỦA CHOLESTEATOMA

Abstract

Objective: To evaluate the value of temporal bone computed tomography (CT) in detecting complications of congenital and acquired cholesteatoma. Materials and Methods: A cross-sectional descriptive study was conducted on 80 patients with acquired cholesteatoma and 41 patients with congenital cholesteatoma treated at the National Otorhinolaryngology Hospital and the National Children’s Hospital from November 2022 to December 2024. The investigated complications included meningeal conditions, the position of the sigmoid sinus, facial nerve canal involvement, and semicircular canal involvement on CT images, compared with intraoperative findings. Results: The diagnostic accuracy of CT was 92.4% for dural dehiscence; 96.7% for dural herniation; 89.1% for sigmoid sinus involvement; 95.9% for involvement of the second segment of the facial nerve canal; 98.9% for involvement of the third segment of the facial nerve canal; 98.9% for semicircular canal fistula; and 98.9% for semicircular canal erosion. Conclusion: CT is effective in detecting complications involving the dura mater, sigmoid sinus, facial nerve canal, and semicircular canals.