The bleeding heart: A case of cardiac angiosarcoma presenting with pulmonary hemorrhage and hemoptysis

Primary cardiac angiosarcoma is an extremely rare and aggressive tumor that originates from the endothelial lining of cardiac blood vessels. We report a case of a 48-year-old man with history of military burn pit exposure, who presented with shortness of breath, cough, and hemoptysis. He was treated as a case of pneumonia, later he developed a diffuse pulmonary hemorrhage, and the etiology of his symptoms was found to be cardiac angiosarcoma with lung involvement. This case highlights the important clinical, radiological, and pathological characteristics of a rare cancer that commonly spreads to the lungs, urging healthcare providers to keep it in mind when diagnosing hemoptysis and pulmonary hemorrhage.