Anomalous great cardiac vein draining into juxtaposed right atrial appendage.

We present a case of a 2-year-old boy with a double outlet right ventricle and juxtaposed atrial appendages with anomalous drainage of the great cardiac vein into the aneurysmally dilated juxtaposed right atrial appendage. The case highlights the role of computed tomography (CT) angiography in depicting anomalous coronary venous anatomy and guiding therapeutic interventions involving the coronary venous approach.