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Right aortic arch and major aorto-pulmonary collaterals were most common associated cardiac abnormalities in TOF patients.
Hybrid repair of a Kommerell diverticulum associated with a right aortic arch and a left descending aorta.
Crossed pulmonary arteries are a rare cardiac abnormality that often associates with congenital heart disease such as ventricular septal defect, right aortic arch, interrupted aortic arch and truncus arteriosus and chromosomal abnormalities such as chromosome 22q11 deletion.
Such a condition appears due to defect in absorption of primitive right aortic arch in the embryo.
She had an interrupted right aortic arch, which meant the aorta - the largest blood vessel that supplies the body - was not developed properly.