Amazon.com description: Product Description: This is the first book to concentrate on dysphagia in rare conditions - those that occur infrequently or those that may occur more frequently but are only sometimes associated with dysphagia. Covering a wide range of conditions - from progressive supranuclear palsy (PSP), through connective tissue disease, to conditions as diverse as West Nile virus - the editors and expert contributors efficiently synthesize the available information to provide the essentials needed to help clinicians to perform sophisticated assessments, based on their knowledge of both the conditions and the expected swallowing signs and treatments. Each entry covers the neurology of the given condition, including the signs and symptoms, neuropathology, epidemiology and genetics. Thereafter, coverage of swallowing in each condition examines the diagnostic signs and symptoms, etiology, swallowing neuropathology, associated cognitive, linguistic, and communicative signs and symptoms, special diagnostic considerations, treatment, nutrition, hydration, and medications.