This comprehensive volume with contributions by over 30 of the world's leading rhinologists will help to shed light on this difficult topic. Prof. Kountakis and Prof. Senior are well-known ENT-surgeons in the U.S. Prof. Draf is one of the most senior and most recognized ORL/Head- and Neck surgeon in Germany and world-wide. Thorough discussions of anatomy and pathophysiology of a variety of frontal sinus diseases provide a background for in-depth chapters on aspects of both medical and surgical management. A variety of surgical approaches are discussed, including the latest endoscopic techniques, as well as more traditional open and microscopic approaches. Heavily illustrated, this volume will be