Genetic and Rare Diseases Information Center (GARD)


Other names people use for this condition
  • Hypoplasia of thymus and parathyroids
  • Third and fourth pharyngeal pouch syndrome
  • DGS
  • Hypocalcemia arising from parathyroid hypoplasia, thymic hypoplasia, and outflow tract defects of the heart
  • DiGeorge anomaly
  • DiGeorge sequence
  • Familial third and fourth pharyngeal pouch syndrome
  • Pharyngeal pouch syndrome
  • Thymic aplasia syndrome

DiGeorge syndrome
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DiGeorge syndrome is a disorder caused by the deletion of a small piece of chromosome 22. The deletion occurs near the middle of the chromosome at a location designated q11.2. The features of this syndrome vary widely. Symptoms may include heart defects, cleft palate, recurrent infections, kidney abnormalities, low levels of calcium in the blood, thrombocytopenia, feeding difficulty, hearing loss, developmental delays, and learning disabilities. People with DiGeorge syndrome are also more likely to develop certain autoimmune disorders (e.g., rheumatoid arthritis, Graves' disease) and personality disorders (e.g., schizophrenia, depression, anxiety, and bipolar disorder).[1]

References
  1. 22q11.2 deletion syndrome. Genetic Home Reference. Available at: http://ghr.nlm.nih.gov/condition=22q112deletionsyndrome. Accessed March 27, 2008.

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