Abstract Background Pseudoaneurysm of the mitral-aortic intervalvular fibrosa (P-MAIVF) is a rare complication of infective endocarditis and aortic valve replacement. Ruptured P-MAIVF and angina due to compression of the coronary arteries are severe complications of this condition. Case presentation We report a case of P-MAIVF that was diagnosed accidentally during a routine checkup. https://www.roneverhart.com/RME-Fireface-UFX-III-Audio-Interface-p32300/