Infective Endocarditis Complicated by a Mitral-Aortic Junction Abscess.

Perivalvular abscess is a life-threatening complication of infective endocarditis. Early recognition using transesophageal echocardiography (TEE), including advanced three-dimensional (3D) imaging, is crucial for diagnosis, surgical planning, and timely intervention. This case highlights the value of 3D TEE in defining peri-annular extension and guiding complex procedures, such as the Commando surgery.