title: Right atrial thrombus simulating myxoma on M-mode echocardiography in a patient with pulmonary emboli.
abstract: Echoes from a right atrial mass in a patient with pulmonary embolism simulated a typical echocardiographic appearance of a right atrial myxoma. The patient was admitted with recurrent pulmonary emboli and had evidence of deep venous thrombosis on venography. M-mode echocardiography showed the appearance of a right atrial mass and right atrial angiography confirmed the presence of a mass prolapsing from right atrium into right ventricle. Subsequent 2-dimensional echocardiography and careful repeat M-mode echocardiography failed to demonstrate the mass suggesting embolisation to the lungs or lysis of the thrombus.
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D004452:Echocardiography; D006325:Heart Atria; D006331:Heart Diseases / Q000175:diagnosis*; D006338:Heart Neoplasms / Q000175:diagnosis*; D006801:Humans; D008297:Male; D009232:Myxoma / Q000175:diagnosis*; D011655:Pulmonary Embolism / Q000175:diagnosis*; D012008:Recurrence; D013927:Thrombosis / Q000175:diagnosis*; D014261:Tricuspid Valve