Childhood disintegrative disorder

Childhood Disintegrative Disorder (CDD), also known as Heller's Syndrome, is a rare and severe neurodevelopmental disorder that typically affects children between the ages of 3 and 4 years. It is characterized by a significant and marked regression in multiple areas of functioning, including language, social skills, motor skills, and adaptive behaviors. This condition is part of the autism spectrum disorders (ASD) but is distinct in the abrupt and profound loss of previously acquired skills, which sets it apart from other developmental disorders like autism.

The onset of CDD is typically marked by a period of normal development followed by a sudden and significant regression. Children who initially show typical developmental milestones such as speaking, walking, and interacting socially will begin to lose these abilities after a few years. ______ _________ ________ _________ _______ __________ _______ ___.
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