Chronic sphenoid sinusitis

Sphenoid sinusitis was thought to be a rare rhinitis. According to Liu Junqian (1958) 660 cases of sinus radiographs, there were only 6 cases of chronic sphenoid sinusitis, accounting for 0.9%. Due to the deep position of the sphenoid sinus and insufficient lighting for rhinoscopy, the opening of the sphenoid sinus cannot be seen, and the symptoms of sphenoid sinusitis are not clear, so the incidence of sphenoid sinusitis is considered to be the lowest. In recent years, due to the advent of cold light source nasal endoscopes, various viewing angles can be used to improve the illumination and visibility of the various parts of the nose, which overcomes the limitation of the field of vision, and the incidence of chronic sphenoid sinusitis has also increased significantly. According to Zhao Chuoran et al. (1988), out of 700 routine nasal endoscopy, 58 cases of sphenoid sinusitis, accounting for 8.3%.