Double outlet right atrium-A "bridge" across the bridging leaflets.

our case adds to the spectrum of atrial septal mal-alignment variant of DORA in the setting of AVSD without atrial and ventricular components, with RA to LV communication occurring via the smaller orifice of a left atrioventricular valve divided by the abnormal insertion of a partially overriding, mal-aligned atrial septum; a mechanism not described previously - the 'bridge' across the bridging leaflets!