Endoscopic Anatomy of the Nose and Paranasal Sinuses ... | 合法醫療器材資訊網

2016年8月8日—Themiddlemeatusisthemostimportantregionforendoscopicnasalexamination:itisthenormalentrancetotheethmoid,frontal,andmaxillary ...

Anatomical textbooks and atlases offer very accurate descriptions of the structure and topography of the nose and the paranasal sinuses, but the details have been worked out from macroscopic laminar sections on cadaver dissections. However, intranasal surgeons must be able to orientate themselves looking through straight or angled endoscopes. They must develop a three-dimensional mental image allowing them to know exactly where they are, where the ducts and the danger points lie, and what structures are closely related. Endoscopic topographical anatomy, therefore, must be studied by imitating surgical approaches.

This chapter begins with a basic orientation on endoscopic landmarks within the nasal cavity. This is supplemented by a series of CT images to facilitate comprehension and a three-dimensional perception of the surgical field. Step-by-step descriptions of typical operative maneuvers during an anatomical dissection follow and may se...