The mucoceles or pyoceles of the paranasal sinuses.

Fifty-five mucopyoceles in 53 patients were diagnosed during the 10-year period from 1982 to 1992 in our department. These included 8 from the frontal sinus, 25 from the maxillary sinus, 10 from the ethmoidal sinus, 1 from the maxillary and ethmoidal sinuses, 7 from the frontoethmoidal sinuses and 4 from the sphenoethmoidal sinuses. The patients ranged in age from 8 to 78 years (mean 47.1 years). The ratio of males to females was 31 to 22. The rhinologic symptoms occurred most often in maxillary mucopyoceles and were rare in the other groups whereas ophthalmic symptoms were noticed in most of the cases. All of the cases received surgery and postoperatively most of the initial symptoms subsided except that two patients still had occasional diplopia and one did not recover at all from complete blindness. Two cases had a recurrence and one suffered from subarachnoid hemorrhage shortly after discharge. Surgery is the only treatment modality for mucopyoceles and the building of a new patent communication between the lesion and nasal cavity is important for the success of this surgery.