Inflammatory diseases of the sinuses:anatomy.

Inflammatory sinus disease most commonly results from or is exacerbated by areas of obstruction within the sinuses. Recent revision of our understanding of mucociliary clearance has placed a renewed emphasis on sinus anatomy, particularly in identifying natural sinus ostia. A discussion of paranasal sinus anatomy is presented in this article along with special reference to these areas as well as contiguous sites that may be involved as a complication of inflammatory disease.