The first edition of William Lincoln Ballenger's Diseases of the Nose, Throat and Ear: Medical and Surgical was published in 1908 and has since sold over 150,000 copies worldwide in 11 languages. The 18th edition has expanded to 114 chapters, continuing the tradition of excellence and applying Ballenger's original concept of combining an atlas with text to produce a comprehensive reference for practitioners of the 21st century. Color plates, illustrations, endoscopic photographs, and other color photographs illuminate surgical concepts, the foundations of underlying disease, and procedures. Section editors and senior authors were selected for their valuable contributions and international leadership in their disciplines. This edition blends state-of-the-art clinical techniques, methods, and outcomes with scientific foundations in an accessible, reader-friendly manner for both developing specialists and seasoned practitioners. New to this edition: more than 1,000 full-color clinical illustrations and photographs; emphasis on the role of molecular biology in the pathogenesis of disease and therapy; coverage of the genetic, virology, bacterial, and immunologic basis of disease; expanded presentation of the basic science underlying clinical practice; and expansion of the rhinology and pediatric otorhinolaryngology sections. New chapters on cochlear, auditory brainstem, vestibular prostheses, allergy evaluation, immunotherapy, medical management of chronic sinusitis, upper and lower blepharoplasty, cleft lip, drooling, dysphagia and aspiration, otoplasty, functional rhinoplasty, navigational systems, surgical simulators, and robotic surgery. New pediatric chapters on speech and resonance disorders in children, voice disorders in children, pediatric head and neck neoplasms, aerodigestive tract foreign bodies and caustic ingestions, vascular tumors and malformations of the head and neck, infectious and inflammatory disorders of the larynx and trachea, congenital anomalies of the nose and nasal airway, congenital anomalies of the external, middle and inner ear, congenital anomalies of the mandible and maxilla, and acquired anomalies of the larynx and trachea.