Objective: To compare endoscopy maneuver with Caldwell-lucoperation for the treatment of chronic.
目的：比较内窥镜术和柯陆氏术治疗慢性鼻窦炎的疗效。
2
AIM: To study the pathological changes of maxillary sinus in the patients after conventional maxillary radical treatment, Caldwell-Lucoperation, and discuss its clinic significance.