Essential Tremor
Essential Tremor Elan D. Louis INTRODUCTION Essential tremor (ET) is a chronic, progressive neurologic disease. The hallmark motor feature is a 4- to 12-Hz kinetic tremor (tremor occurring during voluntary…
Neurosarcoidosis
Neurosarcoidosis John C. M. Brust INTRODUCTION Sarcoidosis is a multisystem, granulomatous disease of unknown cause. Sarcoid granulomas resemble those of tuberculosis but lack tubercle bacilli or caseation, although central necrosis…
Autoimmune Meningitis and Encephalitis
Autoimmune Meningitis and Encephalitis Lawrence S. Honig INTRODUCTION Meningitis and encephalitis are defined as inflammatory conditions of the meninges or brain, and often occur together as meningoencephalitis, affecting both meninges…
Multiple Sclerosis and Allied Demyelinating Diseases
Multiple Sclerosis and Allied Demyelinating Diseases Claire S. Riley INTRODUCTION Among demyelinating diseases, multiple sclerosis (MS) is the most common and widely recognized. It is the leading cause of nontraumatic…
Pontine and Extrapontine Myelinolysis
Pontine and Extrapontine Myelinolysis Gary L. Bernardini Elliott L. Mancall INTRODUCTION In 1959, Adams, Victor, and Mancall described a distinctive, previously unrecognized disease characterized primarily by the symmetric destruction of…
Prion Diseases
Prion Diseases Lawrence S. Honig INTRODUCTION Prion diseases are a less common group of neurodegenerative disorders. There are several disorders distinguished by clinical presentation and pathoetiologic basis but marked by…
HIV and AIDS
HIV and AIDS Kiran Thakur Ned Sacktor Carolyn Barley Britton Barbara S. Koppel INTRODUCTION Acquired immunodeficiency syndrome (AIDS) is the most devastating pandemic of the 20th and early 21st centuries….
Viral Infections
Viral Infections Shibani S. Mukerji Jennifer L. Lyons “The single biggest threat to man’s continued dominance on the planet is a virus.” — Joshua Lederberg, Nobel Prize winner INTRODUCTION Viral…
Parasitic Infections
Parasitic Infections Gustavo C. Román INTRODUCTION Parasitic infections are a tremendous public health burden in tropical and subtropical regions. Parasitic tropical diseases of the nervous system can be found anywhere…
Chronic Meningitis
Chronic Meningitis Joseph R. Zunt Kelly J. Baldwin INTRODUCTION Chronic meningitis is commonly defined as inflammation of the meninges, most often accompanied by a pleocytosis of greater than 5 white…
