Arslan H, Aydinlioğlu A, Bozkurt M, Egeli E
Department of Radiology, School of Medicine, Yüzüncü Yil University, Van, Turkey.
Auris Nasus Larynx. 1999 Jan;26(1):39-48. doi: 10.1016/s0385-8146(98)00024-8.
Chronic rhinosinusitis endoscopic surgery requires an accurate evaluation of diseases and paranasal sinus anatomic variations. This study aims to show the main anatomical variations in the ostiomeatal complex and paranasal sinuses which are usually depicted by computed tomography (CT). CT scans obtained 2 mm thickness in axial and coronal plane from a series of 200 patients with chronic sinusitis were examined to determine the prevalence of anatomic variants. Anatomical variations determined were supraorbital recess in 6%, concha bullosa in 30%, sphenomaxillary plate in 17%, infra-orbital ethmoid cells (Haller's cells) in 6%, spheno-ethmoid cells (Onodi's cells) in 12%, pneumatization of the anterior clinoid process in 6%, carotid artery bulging into the sphenoid sinus in 8%, pneumatization of the uncinate process in 2%, paradoxical curvature of the middle turbinate in 3% and septal deviation in 36%. Level difference between the ethmoid roof and nasal vault was an average of 8 mm in right side and 9.5 mm in left side. Awareness of these different variations will help the rhinologic surgeon in his orientation during endoscopic surgical procedures.
慢性鼻-鼻窦炎的内镜手术需要对疾病和鼻窦解剖变异进行准确评估。本研究旨在展示通常由计算机断层扫描（CT）呈现的窦口鼻道复合体和鼻窦的主要解剖变异。对一系列200例慢性鼻窦炎患者在轴向和冠状面获取的层厚2mm的CT扫描进行检查，以确定解剖变异的发生率。所确定的解剖变异包括：眶上隐窝占6%，泡状鼻甲占30%，蝶上颌板占17%，眶下筛窦气房（哈勒气房）占6%，蝶筛气房（Onodi气房）占12%，前床突气化占6%，颈内动脉突入蝶窦占8%，钩突气化占2%，中鼻甲反常曲线占3%，鼻中隔偏曲占36%。筛窦顶与鼻腔穹窿之间的高度差右侧平均为8mm，左侧平均为9.5mm。了解这些不同的变异将有助于鼻科外科医生在内镜手术过程中的定位。
