The incidence of the mucocele is lowest in
Paranasal sinus mucoceles most commonly occur in the third or fouh decades of life with a slight male predilection. The frontal sinus is most commonly affected followed by the ethmoid sinuses, with repos suggesting 70-90 % of mucoceles occur in these locations.Ten percent of mucoceles occur in the maxillary sinus and the sphenoid sinus is involved rarely.
Frontal sinus
Sphenoid sinus
Maxillary sinus
Ethmoid sinus
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