A mucocele is a chronic, benign expansile, and cyst-like lesion of the paranasal sinus which contained inspissated secretion and is limited by the mucosa of the affected cavity.

• 摘要副鼻窦黏液囊肿乃是一种充满黏液据鼻窦空腔的良性、扩张性且具局部破坏性的囊肿性病灶。