Embryology and Anatomy of the Ear
1 Embryology and Anatomy of the Ear 1.1 External Ear 1.1.1 Embryology (Fig. 1.1) • External auditory meatus from 1st pharyngeal cleft; at 3/12 cells at bottom of cleft form…
Vestibular Schwannoma
10 Vestibular Schwannoma 10.1 Terminology • Sometimes called acoustic neuroma, but is not on the cochlear (acoustic) nerve, nor is it a neuroma 10.2 Epidemiology • Male = female distribution;…
Major Salivary Gland Tumours
46 Major Salivary Gland Tumours 46.1 Benign Tumours • Pleomorphic adenoma—most common in parotid, 1% risk of malignant change per year after 10 years • Warthin (papillary cystadenoma lymphomatosum)—smoking risk…
External Ear Disease
3 External Ear Disease 3.1 Inflammatory Disorders of the Auricle • Cellulitis of auricle: regional neck nodes may be inflamed; usually gram +ve cocci (not Pseudomonas) • Allergic dermatitis: no…
Paediatric Laryngeal Pathology
66 Paediatric Laryngeal Pathology 66.1 Laryngomalacia 66.1.1 Incidence and Aetiology • Most common cause of stridor in newborn • May be autosomal dominant • 68% have other respiratory disorders (as…
Imaging of the Ear
20 Imaging of the Ear 20.1 Imaging Modalities 20.1.1 Computed Tomography (CT) • Describe areas of high or low attenuation • Uses conventional X-rays (ionizing radiation) with computer processing of…
