Abstract
Changes of the nasal and antral mucosae due to chronic sinusitis and allergic rhinitis have been studied by means of scanning electronmicroscopy. The findings were evaluated together with those obtained by contrast study of the antrum as well as by operations.
The authors presented the followings as possible contributing factors for the creation of pathology in the paranasal sinus.
1. Decreased ciliary activity of the mucous membrane
2. Decreased capillary action of the natural ostium
3. Distorted nasal air flow.
4. Disturbed excretion of the antral contents
5. Disturbed gravitational flow of the contents
6. Disturbed excretion of the contents due to arterial pulsations
7. Destruction of the draining osseous ducts in the lateral nasal wall.
