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Glossary for Pervasive developmental disorders

  • Alagille Syndrome: A genetic disorder affecting the liver and characterized by the absence of some or all of the liver bile ducts that transport bile within the liver.
  • Asperger syndrome: A neuropsychiatric disorder mainly involving the inability to understand and becoming involved in social interaction.
  • Atrial Septal Defect: An abnormal connection between the 2 atria, or upper chambers of the heart
  • Autism: Childhood mental condition with social and communication difficulties.
  • Autistic conditions: Medical conditions related to autism or autism spectrum disorders.
  • CHARGE Syndrome: A rare disorder characterized by choanal atresia, coloboma, ear and genital abnormalities and congenital heart defects.
  • Camurati-Engelmann Disease: A rare genetic connective tissue disorder characterized by diaphyseal dysplasia, muscle weakness and leg pain.
  • Cardiofaciocutaneous Syndrome: A rare genetic disorder characterized by short stature, congenital heart defects skin anomalies and frontal bossing.
  • Child health conditions: Any medical conditions typically afflicting children.
  • Childhood disintegrative disorder: A rare disorder where a period of normal development (a couple of years) is followed by delays in the development of motor, social and language skills. Previously acquired skills are lost.
  • Developmental problems: Physical or mental development difficulty.
  • Down Syndrome: A chromosome syndrome causing physical effects and mental retardation.
  • Ebstein's anomaly: A congenital heart defect where the tricuspid valve is deformed. The tricuspid valve in the heart normally has three flaps that control blood flow but in Ebstein's anomaly, one of the flaps remains open instead of closing and allows blood to leak through.
  • Ellis-van Creveld syndrome:
  • Intellectual or developmental disabilities: Disorders of physical or intellectual development.
  • Ivemark Syndrome: A rare progressive disorder characterized by absence or abnormal development of the spleen and malformations of the heart vessels.
  • Landau-Kleffner Syndrome: A neurological disorder which results in aphasia, epileptic seizures and inability to recognize sounds.
  • Language problems: Symptoms affecting language processing.
  • Movement symptoms: Changes to movement or motor abilities
  • PUPPPS: Pruritic urticarial papules and plaques of pregnancy
  • Patent foramen ovale: A normal variant, where the foramen ovale (connection between the two upper chambers of the heart) fails to close after birth.
  • Psychiatric disorders: Any condition that affects ones mind
  • Rett's syndrome: Autism-like behavioral syndrome in infant girls
  • Schizophrenia: A psychiatric disorder characterized by hallucinations and delusional beliefs where a person is unable to distinguish between reality and imagination. The condition tends to have a chronic nature and can be severely debilitating if treatment isn't sought.
  • Separation anxiety disorder: Excessive anxiety over separation
  • Social phobia: Excessive anxiety in social situations.
  • Social problems: Difficulty relating to other people
  • Society problems: Difficulty interacting in society.
  • Speech and communication conditions: Medical conditions affecting speech or the ability to communicate.
  • Tourette Syndrome: A neurological disorder involving vocal and movement tics where where uncontrollable movements or verbal utterances are made.


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