Coronary artery disease is a rare entity in young patients and accurate assessment of its prevalence is difficult. Although coronary artery disease is frequently a silent process, it may also acutely present with myocardial infarction (MI). One of the most feared complications of MI is left ventricular thrombus formation. Transthoracic echocardiography is recommended for all patients with MI, and cardiac magnetic resonance should be considered because of its higher sensitivity if thrombus cannot clearly be demonstrated. The optimal treatment is based on anticoagulant therapy that should be started early and maintained for 3-4 months after the index event. We report the case of a 35-year-old male patient with anterior MI, complicated by left ventricular thrombus formation, extensive edema, microvascular obstruction and hemorrhagic core of the apical septum on cardiac magnetic resonance assessment.