A maternally inherited 828 kb microdeletion of 2q37.3 manifested in a 3-week-old premature boy as left juxtaposition the atrial appendages associated with tricuspid atresia, double outlet infundibulum, subvalvar pulmonary large secundum septal defect, and right aortic arch mirror-image branching, consistent developmental arrest early heart looping. To best our knowledge, no previous 2q37 deleti...
