Therapeutic endoscopy of the paranasal sinuses.

This paper is mainly concerned with describing and demonstrating the technique of paranasal endoscopies--maxillary, frontal, sphenoidal--, illustrated by diagrams. The improvement of technique in diagnosis and therapy of the paranasal sinuses has proved essentially successful. Indications for therapeutic endoscopy of paranasal sinuses are: 1. Purulent sinusitis. 2. Polypous and purulent sinusitis in children. 3. The so-called "mucosinus". 4. Removal of solitary cysts. 5. Removal of tooth fillings and roots. The different procedures are described.