Mike lupicia s childhood disintegrative disorder

Neurodevelopmental condition

Medical condition

Childhood disintegrative disorder
Other names	Heller syndrome, disintegrative psychosis, dementia infantilis
Specialty	Psychiatry, pediatrics
Usual onset	3–4 years of age
Differential diagnosis	regressive autism, Rett syndrome, lead poisoning, mercury poisoning, HIV infection, brain tumor, certain seizure disorders (e.g., Landau-Kleffner syndrome), and some neurodegenerative diseases (e.g., variant Creutzfeldt-Jakob disease)[1][2]

Childhood disintegrative disorder (CDD), also known as Heller syndrome and disintegrative psychosis, is a rare condition characterized by late onset of developmental delays—or severe and sudden reversals—in language (receptive and expressive), social engagement, bowel and bladder, play and motor skills.^[3][4] Researchers have not been successful in finding a cause for the disorder.^[3][4&