title: Deletion 22q11: a newly recognized cause of behavioral and psychiatric disorders.
abstract: BACKGROUND
  Chromosome 22q11 deletion (del22q11), the most common microdeletion syndrome, causes a wide spectrum of clinical disorders. Recent studies have suggested that significant psychiatric and behavioral disturbances occur in up to 60% of these individuals.
  
  
  OBJECTIVE
  To illustrate the spectrum of behavioral and psychiatric abnormalities associated with del22q11 and the subtle nature of its associated physical findings.
  
  
  METHODS
  Case series describing psychiatric and behavioral findings in 3 patients with del22q11.
  
  
  CONCLUSIONS
  Behavioral and psychiatric problems are common in patients with del22q11 syndrome. Because the physical manifestations of the disorder are so variable and may be subtle, the behavioral and psychiatric manifestations may be the presenting problem. Providers must therefore consider del22q11 as a potential diagnosis in children and adults with behavioral and psychiatric problems. Furthermore, behavioral and psychiatric problems need to be looked for when caring for children and adolescents with a known diagnosis of del22q11.
authors.affiliation: Department of Genetics, Center for Human Genetics, Case Western Reserve University School of Medicine, University Hospitals of Cleveland, Ohio, USA.
authors.forename: S E
authors.initials: SE
authors.lastname: McCandless
authors.forename: J A
authors.initials: JA
authors.lastname: Scott
authors.forename: N H
authors.initials: NH
authors.lastname: Robin
mesh_terms: D000293:Adolescent; D002648:Child; D002652:Child Behavior; D002653:Child Behavior Disorders / Q000235:genetics; D002872:Chromosome Deletion; D002892:Chromosomes, Human, Pair 22 / Q000235:genetics*; D005260:Female; D006801:Humans; D008297:Male; D001523:Mental Disorders / Q000235:genetics*; D008875:Middle Aged; D013577:Syndrome