Abstract
Maxillary sinus mucoceles without a history of previous surgery or trauma are extremely rare. If these mucoceles are accompanied by bony destruction, then the differential diagnosis includes tumorous lesions. We report here two such cases of maxillary sinus mucoceles. In both cases, a CT scan showed a homogeneous mass causing expansion of the maxillary sinuses and bony destruction. Aspiration from the affected maxillary sinuses showed a thick yellowish fluid, which suggested that they were mucoceles. The findings of the Caldwell-Luc operation with an antrostomy coincide with the diagnosis of mucoceles, and no further tumorous lesions were observed by histological examination.
