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Abstract We present a case of a 66‐year‐old male with a history of two previous diagnoses of myocardial infarction, followed by drug‐eluting stent implantation. During the check‐up, he complained of dyspnea, fatigue, and dizziness. Echocardiography revealed a massive left ventricular pseudoaneurysm (LVP). According to the patient's clinical manifestations and radiologic data, urgent surgical intervention was performed. Postoperatively, several complications appeared, which were managed successfully. The patient was discharged in stable condition. This is an interesting case of massive LVP without hemodynamic instability.

We report a case of persistent left superior vena cava (PLSVC), discovered by chance during the cardiac electronic device placement procedure. PLSVCs are congenital anomalies of the thoracic vasculature, during which remnants of the left superior vena cava drain into the right atrium through the coronary sinus. PLSVCs can vary in their location and overall anatomy. In patients with PLSVC, implantation of a cardiac electronic device is associated with an increased risk of technical difficulties the entire procedure.