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Rett syndrome is a neurodevelopmental disorder of the grey matter of the brain[1] that affects almost exclusively females. The clinical features include small hands and feet and a deceleration of the rate of head growth (including microcephaly in some). Repetitive hand movements, such as wringing and/or repeatedly putting hands into the mouth, are also noted. People with Rett syndrome are prone to gastrointestinal disorders and up to 80% have seizures.[2] They typically have no verbal skills, and about 50% of individuals affected are not ambulatory. Scoliosis, growth failure, and constipation are very common and can be problematic.

The signs of this disorder are most easily confused with those of Angelman syndrome, cerebral palsy and autism.


Source: Wikipedia.org