Anatomy of the Ear
Introduction Print Section Listen The temporal bone forms part of the side and base of the skull. It constitutes two-thirds of the floor of the middle cranial fossa and one-third…
Hearing Rehabilitation: Surgical and Nonsurgical
Part 1: Hearing Amplification Print Section Listen Hearing Aid Basics Components of a Hearing Aid Microphone picks up sound and converts it into electrical signals. Amplifier/signal processor is the heart…
Tumors of the Temporal Bone
Selected Benign Tumors Print Section Listen See Table 24-1. Table 24-1Tumors of the Temporal Bone Benign Malignant EAC Osteoma SCCA Adenoma BCCA Adenocarcinoma (ceruminous) Melanoma Direct extension of tumors…
Noninfectious Disorders of the Ear
External Ear Print Section Listen Trauma Lacerations: simple with or without involved cartilage; stellate from blunt trauma; partial or total avulsion Treatment: Deep cleaning, debridement, surgical repair; may require stage…
Infections of the Temporal Bone
Chondritis, Perichondritis, and Cellulitis of the Auricle Print Section Listen Spectrum of disease from mild superficial skin infection to chondritis. Cellulitis is an infection of the skin of the auricle….
Facial Nerve Paralysis
Anatomy and Physiology Print Section Listen The facial nerve is a mixed nerve containing: Motor fibers from the motor nucleus within the pons to the posterior belly of the digastric…
Cochlear Implants
Overview Print Section Listen A cochlear implant (CI) is a surgically implanted device used for hearing rehabilitation of adults and children with advanced sensorineural hearing loss (SNHL) and/or poor speech…
Vestibular and Balance Disorders
Essential Principles of Vestibular Physiology Print Section Listen Principle 1 Traditionally there have been five “senses,” namely vision, hearing, smell, touch, and taste. It is entirely reasonable to name balance…
Congenital Hearing Loss
Introduction Print Section Listen Deafness is the most common sensory defect (1 in 1000-2000 births; there are roughly 4 million births in the United States per year). Early identification allows…
