[Nasal endoscopic surgery in complicated ethmoiditis].

Spread of infection from paranasal sinuses is uncommon but, when it occurs may lead to serious ocular or intracranial complications. In this article we present four patients, three of them with orbital complications and one with an intracranial abscess, who were successfully treated with endoscopic surgery of the sinuses and antibiotic therapy. We describe some potential advantages of this approach.