Audiology

Apr 30, 2020 by in OTOLARYNGOLOGY Comments Off on Audiology

Acoustics Print Section Listen Sound: energy waves of particle displacement, both compression (more dense) and rarefaction (less dense) within an elastic medium; triggers sensation of hearing by vibrating the tympanic…

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Endoscopic Middle Ear Surgery

Apr 30, 2020 by in OTOLARYNGOLOGY Comments Off on Endoscopic Middle Ear Surgery

Introduction Print Section Listen Endoscopic ear surgery (EES) is a minimally invasive approach similar to standard microscopic techniques. Initially endoscope was used to assist traditional operations to visualize middle ear…

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Anatomy of the Ear

Apr 30, 2020 by in OTOLARYNGOLOGY Comments Off on 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…

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Tumors of the Temporal Bone

Apr 30, 2020 by in OTOLARYNGOLOGY Comments Off on 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…

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Noninfectious Disorders of the Ear

Apr 30, 2020 by in OTOLARYNGOLOGY Comments Off on 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…

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Infections of the Temporal Bone

Apr 30, 2020 by in OTOLARYNGOLOGY Comments Off on 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….

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Facial Nerve Paralysis

Apr 30, 2020 by in OTOLARYNGOLOGY Comments Off on 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…

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Cochlear Implants

Apr 30, 2020 by in OTOLARYNGOLOGY Comments Off on 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…

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Tinnitus

Apr 30, 2020 by in OTOLARYNGOLOGY Comments Off on Tinnitus

Introduction Print Section Listen Two categories based on whether observer can hear the tinnitus (objective) or not (subjective). Objective—much less common than subjective Vascular—typically corresponds to pulse (aka, pulse synchronous…

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