Michael P. D'Alessandro, M.D.
Peer Review Status: Internally Peer Reviewed
The mirror image of situs solitus. The anatomic left atrium is on the right and the anatomic right atrium is on the left. Most cardiovisceral malpositions are concordant - the venous atrium, inferior vena cava and major lobe of the liver are on one side of the body, and the arterial atrium, descending aorta and stomach are on the opposite site. It occurs in 0.01% of the population, and has a 3-5% incidence of associated congenital heart disease, which is greater than the incidence of congenital heart disease in patients with situs solitus.
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