DiGeorge syndrome, more accurately known by a broader term — 22q11.2 deletion syndrome — is a disorder caused when a small part of chromosome 22 is missing. This deletion results in the poor development of several body systems.
The term 22q11.2 deletion syndrome covers terms once thought to be separate conditions, including DiGeorge syndrome, velocardiofacial syndrome and other disorders that have the same genetic cause, though features may vary slightly.
Medical problems commonly associated with 22q11.2 deletion syndrome include heart defects, poor immune system function, a cleft palate, complications related to low levels of calcium in the blood, and delayed development with behavioral and emotional problems.
The number and severity of symptoms associated with 22q11.2 deletion syndrome vary. However, almost everyone with this syndrome needs treatment from specialists in a variety of fields.
July 18, 2017
- National Library of Medicine. 22q11.2 deletion syndrome. Genetics Home Reference. https://ghr.nlm.nih.gov/condition/22q112-deletion-syndrome#genes. Accessed May 25, 2017.
- 22q11.2 deletion disorders (DiGeorge syndrome and velocardiofacial syndrome). American Heart Association. http://www.heart.org/HEARTORG/Conditions/CongenitalHeartDefects/AboutCongenitalHeartDefects/22q112-Deletion-Disorders-DiGeorge-Syndrome-and-Velocardiofacial-Syndrome_UCM_309017_Article.jsp#.WSc5wWd1rRE. Accessed May 25, 2017.
- DiGeorge syndrome (DGS). American Academy of Allergy Asthma & Immunology. http://www.aaaai.org/conditions-and-treatments/primary-immunodeficiency-disease/digeorge-syndrome. Accessed May 25, 2017.
- DiGeorge syndrome. Merck Manual Professional Version. https://www.merckmanuals.com/professional/immunology-allergic-disorders/immunodeficiency-disorders/digeorge-syndrome. Accessed May 25, 2017.
- Hofstetter AM, et al. Live vaccine use and safety in DiGeorge syndrome. Pediatrics. 2014;133:e946.
- Chromosome 22q11.2 deletion syndrome. National Organization for Rare Disorders. https://rarediseases.org/rare-diseases/chromosome-22q11-2-deletion-syndrome/. Accessed May 25, 2017.
- Seroogy CM. DiGeorge (22q11.2 deletion) syndrome: Epidemiology and pathogenesis. https://www.uptodate.com/contents/search. Accessed May 25, 2017.
- Seroogy CM. DiGeorge (22q11.2 deletion) syndrome: Clinical features and diagnosis. https://www.uptodate.com/contents/search. Accessed May 25, 2017.
- Seroogy CM. DiGeorge (22q11.2 deletion) syndrome: Management and prognosis. https://www.uptodate.com/contents/search. Accessed May 25, 2017.
- AskMayoExpert. 22q11.2 deletion syndrome. Rochester, Minn.: Mayo Foundation for Medical Education and Research; 2016. Accessed May 10, 2017.
- Babovic-Vuksanovic D (expert opinion). Mayo Clinic, Rochester, Minn. July 6, 2017.
DiGeorge syndrome (22q11.2 deletion syndrome)