A 55-year-old, nondiabetic, nonhypertensive female patient presented with exertional dyspnea and cough for 3 months. She was hemodynamically stable, and her physical examination was remarkable only for pallor. Transthoracic echocardiogram revealed an intramyocardial, multicystic mass, typical of hydatid cyst, compressing the left ventricle (Figure). Despite surgical treatment and management, the patient had refractory ventricular tachycardia and ultimately died of ventricular fibrillation.