Pneumoceles of the paranasal sinuses (a case report).

We report a case of an infection of a large sphenoidal sinus communicating with a hyperaerated mastoid. Endoscopic drainage of this large cavity was successful. We suggest that EES should have a place in the treatment of the sinusal pneumocele. Surgery should however be reserved for cosmetic purposes, infection, algetic symptoms and ocular problems. A cosmetic correction with osteotomy and bone resection can be associated with the endoscopic surgery.