Childhood disintegrative disorder is a condition in which children develop normally through age 3 or 4.

The exact causes of childhood disintegrative disorder are still unknown.

The cause of childhood disintegrative disorder is unknown, but it has been linked to brain and nervous system problems.

Childhood disintegrative disorder: Children with this rare condition begin their development normally in all areas, physical and mental.

The most important sign of childhood disintegrative disorder is the loss of developmental milestones.

The disturbance must not be better accounted for by Rett syndrome or childhood disintegrative disorder.

Childhood disintegrative disorder, a rare condition that causes late-onset developmental delays.

Childhood disintegrative disorder (rare condition where a child learns skills, then loses them by age 10)

Childhood disintegrative disorder.

This leaded to her suffering under serious childhood disintegrative disorder, which belongs to a series of developmental disorders caused by autism spectrum.

Although the occurrence of epilepsy is higher in children with childhood disintegrative disorder, experts don't know whether epilepsy plays a role in causing the disorder."

Other disorders that involve regression are total blindness from birth, childhood disintegrative disorder, Rett syndrome and Landau-Kleffner syndrome.

A Mayo Clinic report indicates: "Comprehensive medical and neurological examinations in children diagnosed with childhood disintegrative disorder seldom uncover an underlying medical or neurological cause.

The new diagnosis will encompass current diagnoses of autistic disorder, Asperger's disorder, childhood disintegrative disorder, and PDD-NOS.

Autism spectrum disorder (ASD) includes autism, Asperger disorder, childhood disintegrative disorder and pervasive developmental disorder-not otherwise specified.

These include PDD 'not otherwise specific' (including 'atypical autism'), as well as Rett syndrome and Childhood disintegrative disorder (CDD).

In DSM-IV-TR Rett's disorder is listed under the broad category of pervasive developmental disorders, together with the autism spectrum disorders and childhood disintegrative disorder.

Other types of PDD include Asperger syndrome, childhood disintegrative disorder, Rett syndrome, and PDD not otherwise specified (PDD-NOS).

PDD-NOS is the vast majority of ASD, Asperger syndrome is about 0.3 per 1,000 and the atypical forms childhood disintegrative disorder and Rett syndrome are much rarer.

A child affected with childhood disintegrative disorder shows normal development and he/she acquires "normal development of age-appropriate verbal and nonverbal communication, social relationships, motor, play and self-care skills" comparable to other children of the same age.

Some sources also include Rett syndrome and childhood disintegrative disorder, which share several signs with autism but may have unrelated causes; other sources differentiate them from ASD, but group all of the above conditions into the pervasive developmental disorders.

Asperger's syndrome pervasive developmental disorder, not otherwise specified (PDD-NOS) autistic disorder Rett's syndrome childhood disintegrative disorder The mildest form of autism, Asperger's syndrome affects boys three times more often than girls.

Pervasive developmental disorders include autism, Asperger syndrome, pervasive developmental disorder not otherwise specified (PDD-NOS), childhood disintegrative disorder, and Rett syndrome, although usually only the first three conditions are considered part of the autism spectrum.

Under the fourth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV), the three conditions on the autism spectrum belong to a broader class known as Pervasive Developmental Disorders (PDD), which also includes Rett syndrome and childhood disintegrative disorder.