Spinal Cord Ependymoma

Dec 29, 2019 by in NEUROLOGY Comments Off on Spinal Cord Ependymoma

Introduction Spinal cord ependymomas are the most common intramedullary tumor in adults and the second most common tumor in children after astrocytomas. Ependymomas typically present within the fourth decade of…

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Esthesioneuroblastoma

Dec 29, 2019 by in NEUROLOGY Comments Off on Esthesioneuroblastoma

Introduction Esthesioneuroblastoma (olfactory neuroblastoma) is an uncommon malignancy of the nasal cavity. Esthesioneuroblastoma represents 3% to 6% of sinonasal malignancies and has an estimated incidence of 0.4 cases per 1…

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Paraganglioma

Dec 29, 2019 by in NEUROLOGY Comments Off on Paraganglioma

Introduction Paragangliomas of the head and neck are rare neoplasms of neural crest cell origin. The four most common sites for paragangliomas within the head and neck are at the…

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Paget’s Disease

Dec 29, 2019 by in NEUROLOGY Comments Off on Paget’s Disease

Introduction Paget’s disease, or osteitis deformans, is a chronic metabolic disorder characterized by increased bone turnover and breakdown secondary to excessive and disorganized osteoclastic and osteoblastic activity ( Fig. 48.1…

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Otospongiosis

Dec 29, 2019 by in NEUROLOGY Comments Off on Otospongiosis

Introduction Otospongiosis, also known as otosclerosis, is a progressive primary bone disorder of abnormal bone resorption and deposition. The majority of cases result in a progressive conductive hearing loss with…

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IgG4-Related Disease in the Head and Neck

Dec 29, 2019 by in NEUROLOGY Comments Off on IgG4-Related Disease in the Head and Neck

Introduction Background IgG4-related disease (IgG4-RD) is a relatively recently recognized fibroinflammatory condition of unknown etiology characterized by elevated serum IgG4, plasmacytic infiltration, multifocal tumefactive fibrosis, and clinical improvement by steroid…

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Vocal Cord Augmentation/Injection Laryngoplasty

Dec 29, 2019 by in NEUROLOGY Comments Off on Vocal Cord Augmentation/Injection Laryngoplasty

Introduction Injection laryngoplasty is performed for treatment of vocal cord paralysis, which may have a variety of causes ( Box 46.1 ). Imaging during a Valsalva maneuver demonstrates the mechanical…

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Carotid Blowout Syndrome

Dec 29, 2019 by in NEUROLOGY Comments Off on Carotid Blowout Syndrome

Introduction Weakening and eventual rupture of the carotid artery is one of the most devastating complications of advanced head and neck cancer treatment. The clinical signs and symptoms related to…

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Orbital Infection

Dec 29, 2019 by in NEUROLOGY Comments Off on Orbital Infection

Introduction There are various forms of orbital infection, including those listed in the Jain-Rubin classification: 1. Periorbital cellulitis 2. Orbital cellulitis with or without intracranial complications 3. Orbital abscess with…

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Sjögren Syndrome

Dec 29, 2019 by in NEUROLOGY Comments Off on Sjögren Syndrome

Introduction Sjögren syndrome (SS) is a chronic autoimmune disorder characterized by inflammatory destruction of the body’s exocrine glands and may be considered primary or secondary, in association with other autoimmune…

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