Otolaryngology is the branch of medicine that deals with the diagnosis and treatment of diseases related to ear, nose and throat. It also includes surgery for non-cancerous as well as cancerous tumors of neck and head. The sub-specialties of this field include neurotology, otology, sleep medicine, rhinology, sinus surgery, head and neck oncologic surgery, reconstructive surgery, etc. This book is a vital tool for all researching and studying this field. The extensive content included herein will provide the readers with a thorough understanding of the subject. In this book, using case studies and examples, constant effort has been made to make the understanding of the difficult concepts as easy and informative as possible, for the readers. It is a beneficial guide for otolaryngologists, surgeons, and researchers associated with this field.