Most patients with cardiac mass have clinical signs mimicking mitral stenosis. As this tumorous mass carries the risk of obstructing the systemic circulation, the physician must consider the possibility of a cardiac tumour in differential diagnosis. That's why all patients presenting with clinical symptoms and a physical finding of mitral stenosis--even those without a history of rheumatic fever--should have routine echocardiography performed. All patients with a documented mass in cardiac chambers should be treated surgically and without delay, if possible.