ĐẶC ĐIỂM HÌNH THÁI VÀ CÁC BIẾN THỂ CỦA MỎM MÓC TRÊN CHỤP CẮT LỚP VI TÍNH MŨI XOANG

Abstract

Background: The uncinate process is a key anatomical structure in the middle meatus, playing a critical role in frontal recess drainage and surgical orientation. Variability in its morphology and attachment sites may complicate surgical dissection and increase the risk of complications if not recognized preoperatively. This study aimed to investigate the morphological characteristics and anatomical variations of the uncinate process on paranasal sinus CT scans. Methods: A cross-sectional descriptive study was conducted on 152 patients aged ≥18 years who underwent paranasal sinus CT scans at Gia Dinh People’s Hospital from August 2024 to June 2025. The uncinate process was evaluated on thin-section CT scans (≤1 mm), classified according to the Landsberg and Frieman system, and assessed for pneumatization and other anatomical variations. Results: A total of 304 uncinate processes (both sides) were analyzed. Type 1 attachment (to the lamina papyracea) was the most common (53.3%), followed by type 2 (17.8%) and type 3 (11.2%). Pneumatized uncinate processes were observed in 20 cases (6.6%). Conclusion: Preoperative assessment of uncinate process morphology and variations on CT scans is essential for surgical planning and reducing complications in Endoscopic sinus surgery. Standardized CT evaluation protocols should be established to improve surgical safety and outcomes.