title: Right aortic arch, isolated left common carotid and left subclavian arteries, and subclavian steal syndrome: a variant of polysplenia syndrome.
abstract: Congenital subclavian steal may result from various anomalies of the aortic arch. The most common predisposing type is the right aortic arch with an isolated left subclavian artery arising from a left ductus arteriosus. A rare variant includes isolation of the left common carotid as well as the left subclavian arteries. The case of an infant with polysplenia--F-anisosplenia syndrome and this rare variant of congenital left subclavian steal is presented. This anomalous constellation has been heretofore unreported and illustrates a new situs abnormality that may complicate the polysplenia syndrome.
mesh_terms: D001013:Aorta, Thoracic / Q000002:abnormalities*; D002339:Carotid Arteries / Q000002:abnormalities*; D005260:Female; D006801:Humans; D007223:Infant; D013154:Spleen / Q000002:abnormalities*; D013348:Subclavian Artery / Q000002:abnormalities; D013349:Subclavian Steal Syndrome / Q000151:congenital*; D013577:Syndrome