Sinus of Valsalva aneurysm is a rare congenital glitch. We report an extremely rare case of left sinus of Valsalva aneurysm compressing and rupturing into the main pulmonary artery with 2 communications. The 34-year-old man also had severe aortic regurgitation and severe tricuspid regurgitation. He underwent successful polytetrafluoroethylene patch repair and aortic valve replacement. The rarity of this case highlights the need for a precise preoperative diagnosis, the roles of transthoracic echocardiography, transesophageal echocardiography, and 3-dimensional echocardiography, and the importance of prompt surgical management.
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