Plain film findings of anatomically corrected malposition: its association with juxtaposition of the atrial appendages and right aortic arch.

Three cases of anatomically corrected malposition of the great arteries (ACM) are presented. The association of ACM with juxtaposition of the atrial appendages and right aortic arch is emphasized. The unique plain film findings of anatomically corrected malposition include: (a) 1-position of the ascending aorta; (b) discrete convexity of the mid-left heart border in association with findings of an abnormal right atrial border (left juxtaposition of the atrial appendages); and (c) right aortic arch. This unusual combination of findings on the postero-anterior chest should lead to a high degree of suspicion in regard to the diagnosis of anatomically corrected malposition.