Kendall Bailey

Abstract A 53-year-old man with a background of acute myelomonocytic leukemia in remission presented with pleurisy. Repeat transthoracic echocardiography over several weeks revealed thickening left ventricular walls and decreasing systolic function. He died of decompensated heart failure due to cardiac myeloid sarcoma, with autopsy revealing an enlarged heart weighing >1 kg. (Level of Difficulty: Intermediate.) Introduction A 53-year-old man presented with pleuritic chest pain.