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Purpose : Microdeletion of chromosome 22q11.2 are associated with DiGeorge syndrome(DGS), velocardiofacial syndrome(VCFS) and conotruncal anomaly face syndrome(CTAFS). DGS was originally described as an immunodeficiency disorder secondary to impaired T cell production due to thymic aplasia or hypoplasia. But the frequency & severity of immunodeficiency of other clinical syndromes associated with the chromosome 22q11 deletion has not been investigated. This... |
