DiGeorge syndrome with microdeletion of chromosome 21
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Abstract
DiGeorge syndrome consists of abnormalities of the parathyroid, thymus and the kidneys. It also includes facial dysmorphism and cardiac defects. It is caused by a microdeletion of the long arm of chromosome 22 and occasionally chromosome 10. The case of a 12-week-old female infant with low set ears, retrognathia, micrognathia, high-arched palate, right-sided aortic arch, hypocalcaemia and truncus arteriosus which are all typical of DiGeorge syndrome and an unusual microdeletion of chromosome 21 is presented.
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