BƯỚC ĐẦU XÁC ĐỊNH TỶ LỆ BIẾN THỂ GIẢI PHẪU THƯỜNG GẶP TRÊN CẮT LỚP VI TÍNH Ở 200 BỆNH NHÂN VIÊM MŨI XOANG MẠN TÍNH TẠI BỆNH VIỆN ĐẠI HỌC Y HÀ NỘI

Abstract

Purpose: To determine the incidence of common sinonasal anatomic variants in MSCT of patients with chronic rhinosinusitis. Material and methods: A descriptive, prospective and retrospective study of 200 patients with chronic rhinosinusitis had performed MSCT at the Radiology Center of Hanoi Medical University Hospital. Result: 63,5% of patients had abnormal nasal septum, deviated septum encountered in all patients, according to Mladina's classification, type I accounted for the highest incidence with 25,2%, followed by type III, II, VII and V was found in 18,9%, 17,3%, 16,5% and 15%, respectively. Anatomical variation of the turbinate was found in 54.5%, in which the concha bullosa was the most common. The most common anatomical variation of the uncinated process was uncinate process pneumatization with 7%. Haller cells are found in 46% of patients, the average size of Haller cells on the right is 4.89mm and on the left is 5.04mm. Agger nasi cells are found in 85% of patients, the average size of right agger nasi cells is 6.38mm and left side is 6.59mm. The average size of the right ethmoidal bulla is 8.9mm, the left one is 9.32mm. Obstruction of the osteomeatal complex was found in 76.5% of patients, the most common location was the maxillary sinus canal, followed by the ethmoid funnel. Conclusion: By studying 200 patients with chronic rhinosinusitis, the result showed the most frequent sinonasal anatomic variants were Onodi cells, followed by Agger Nasi cells and septal nasal deviation.