Revision endoscopic frontal sinus surgery.

Frontal sinusitis following functional endoscopic sinus surgery may represent persistent, recurrent, or iatrogenic disease. The narrow frontal recess is unforgiving of technical errors, and surgery within its confines requires ample training, skill, and patience. Revision surgery in this area, compromised by scarring and long-standing mucosal disease, demands even more of the endoscopic sinus surgeon. While successful treatment of this condition is a formidable task, strict attention to principles of proper medical and surgical therapy can increase the chances of a favorable outcome.