A Rare Variant of the Great Cardiac Vein Draining Directly into the Superior Vena Cava

Conclusion: This variant of the great cardiac vein is interesting due to its rarity, and is important for procedures that require venous access such as coronary surgery requiring retrograde cardioplegia, surgical ablation of aberrant conducting pathways, pacemaker insertion and valve surgery.  
Source: Medical Principles and Practice - Category: Internal Medicine Source Type: research