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22q11.2 deletion syndrome

Other Names for this Disease
  • Autosomal dominant Opitz G/BBB syndrome
  • CATCH22
  • Cayler cardiofacial syndrome
  • Chromosome 22q11.2 deletion syndrome
  • Conotruncal anomaly face syndrome
More Names
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22q11.2 deletion syndrome is a spectrum disorder that includes conditions formerly called DiGeorge syndrome; velocardiofacial syndrome; conotruncal anomaly face syndrome; cases of Opitz G/BBB syndrome; and Cayler cardiofacial syndrome.[539] The features and severity can vary greatly among affected people. Signs and symptoms may include cleft palate, heart defects, recurrent infections, unique facial characteristics, feeding problems, immune system disorders, kidney abnormalities, hypoparathyroidism, thrombocytopenia, scoliosis, hearing loss, developmental delay, and learning disabilities.[1] People with this condition are also more likely to develop certain autoimmune disorders and personality disorders.[402] In most cases, the syndrome occurs for the first time in the affected person; about 10% of cases are inherited from a parent.[2] It is inherited in an autosomal dominant manner.
Last updated: 3/11/2014


  1. Velocardiofacial syndrome. National Institute on Deafness and other Communication Disorders (NIDCD). 2004; Accessed 6/25/2008.
  2. 22q11.2 deletion syndrome. Genetics Home Reference. July, 2013; Accessed 1/29/2014.
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Basic Information

  • Genetics Home Reference (GHR) contains information on 22q11.2 deletion syndrome. This website is maintained by the National Library of Medicine.
  • The Merck Manuals Online Medical Library provides information on this condition. Click on the link to view the information.
  • The National Human Genome Research Institute's (NHGRI) mission encompasses a broad range of studies aimed at understanding the structure and function of the human genome and its role in health and disease. Click on the link to view the information page on this topic.
  • The National Organization for Rare Disorders (NORD) is a federation of more than 130 nonprofit voluntary health organizations serving people with rare disorders. Click on the link to view information on this topic.

In Depth Information

  • Medscape Reference provides information on this topic. Click on the link to view this information. You may need to register to view the medical textbook, but registration is free.
  • MeSH® (Medical Subject Headings) is a terminology tool used by the National Library of Medicine. Click on the link to view information on this topic.
  • The Online Mendelian Inheritance in Man (OMIM) is an catalog of human genes and genetic disorders. Each entry has a summary of related medical articles. It is meant for health care professionals and researchers. OMIM is maintained by Johns Hopkins University School of Medicine. 
  • Orphanet is a European reference portal for information on rare diseases and orphan drugs.  Access to this database is free of charge.
  • PubMed is a searchable database of medical literature and lists journal articles that discuss 22q11.2 deletion syndrome. Click on the link to view a sample search on this topic.