Abstract
As a keypoint to perform revision surgery for chronic sinusitis, mental state of patients, morphological changes of nasal and paranasal cavities and pathological condition are described. As for the reoperation, there is difficulty of surgery contents in itself having much more etiology of both patients side and medical side than those of primary operation. By progress of an imaging diagnosis, medical devices such as the endoscope and navigation system, and investigation of the pathological conditions, the revision surgery is performed precisely and safely, and the quality of the patients could be thought to be improved.
