Riley-Day syndrome

Riley-Dai syndrome, also known as familial dysautonomia, is a rare familial autosomal recessive disease. The disease was first reported by Riley and Day (1949). It mainly occurs in children of Jewish families in Eastern Europe and other races, and the gene carrier is about 1/50 in the close relatives of patients. Clinical features are rich and diverse autonomic dysfunction, such as no tears, abnormal sweating, skin erythema, dysphagia, occasional high fever, and loss of tongue-like mushroom papillae.

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