mucopyocele of the maxillary sinus

mucoceles are defi ned as chronic, cystic lesions in the paranasal sinuses. when the mucocele content becomes infected, the lesion is defi ned as mucopyocele. most mucoceles are located in the frontal and anterior ethmoid sinuses and normally they involve the frontal-ethmoid complex, expanding to the superior-medial region of the orbit, leading to ocular disorders; maxillary sinus presentation is rare. in the present article, the authors described a rare case of mucopyocele in the maxillary sinus. key words: mucocele, mucopyocele, paranasal sinus