A case presented with fever enlightened by cardiac auscultation: Sarcoma originated in pulmonary artery.

In the emergency department, there are many symptoms patients present. One of the major symptoms is fever which could be the only symptom, as our patient had. Not only do infections, drugs, trauma, etc., cause fever, but also undetermined cancer types do. In this case, we are presenting a 28-year-old male coming with a 3-week duration of fever and being admitted with the diagnosis of pulmonary artery intimal sarcoma as generally misconceived with pulmonary thromboembolism, to raise awareness of this fatal cancer.