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20 Diseases You've Probably Never Heard Of


18
Mowat-Wilson Syndrome
Seizures and mental retardation are signs of Mowat-Wilson Syndrome.
Seizures and mental retardation are signs of Mowat-Wilson Syndrome.
Pedro Ugarte/AFP/Getty Images

This is a rare genetic disorder that may be apparent at birth or in the first year of life. It is characterized by mental retardation, distinctive facial features and seizures. The presence of this syndrome may not be realized until childhood or early adulthood. Some affected individuals may also have a gastrointestinal disease known as Hirschsprung disease.

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