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An 82-year-old woman was admitted to our hospital with heart failure. Coronary angiography revealed one anatomically normal right coronary artery and three left coronary arteries (LCA-1, LSA-2, and LSA-3) separately originating from the right sinus of Valsalva, comprising multiple atherosclerotic lesions. LCA-1 became the obtuse marginal branch after branching off into the septal branches. LCA-2 was the main circumflex artery with an obstructive lesion. LCA-3 corresponded to the distal part of the anterior descending branch. The patient died 14 days after hospitalization. We describe the rarity of quadriostial origin, the unusual course, and the unusual branching of the coronary arteries.

Four Coronary Arteries Separately Originating from the Right Sinus of Valsalva