鼻窦粘液囊肿为少见疾病 ,主要发生于 50岁成人。它是由窦内假性囊肿扩展形成 ,囊壁多由粘膜或窦腔组成。囊肿内容物一般为无菌粘稠液体。病理为良性 ,但有骨质破坏。病因有感染学说、外伤创伤学说等。近 10年来 ,鼻窦粘液囊肿病例增多 ,许多学者认为与广泛开展的鼻内窥镜手术 Sinus mucosal cysts are rare diseases, mainly occurring in 50-year-old adults. It is formed by the expansion of sinus pseudocysts, wall composed of mucosa or sinus cavity. Cyst contents are generally sterile, viscous liquids. Pathology is benign, but there is bone destruction. Cause of infection theory, traumatic injury theory. In the past 10 years, there have been more cases of sinonasal cyst, and many scholars think that with extensive nasal endoscopic surgery