Typical phenotypic spectrum of velocardiofacial syndrome occurs independently of deletion size in chromosome 22q11.2.

Abstract excerpt

Velocardiofacial syndrome (VCFS) is a relatively common developmental disorder characterized by craniofacial anomalies and conotruncal heart defects. Many VCFS patients present hemizygous deletions on part of chromosome 22q11.2; suggestive that haploinsufficiency in this region is responsible for this etiology. Most 22q11.2 deletions occur sporadically, although in some cases the deletion may be transmitted. A...

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