title: Non-invasive diagnosis of a free-floating left atrial thrombus with emphasis on two-dimensional echocardiographic features.
abstract: Two-dimensional echocardiography permitted identification of a large free-floating left atrial thrombus in a patient with mitral stenosis. A specific pattern of motion afforded its recognition and differentiation from mural left atrial thrombosis and tumors. Phonocardiographic tracings revealed a non-ejection systolic click and opening snap. A gated blood pool scintigram disclosed a left atrial filling defect. Subsequent left atrial angiography and left atriotomy confirmed the non-invasive findings.
mesh_terms: D001314:Auscultation; D004452:Echocardiography / Q000379:methods*; D005260:Female; D006325:Heart Atria / Q000601:surgery; D006801:Humans; D008875:Middle Aged; D008946:Mitral Valve Stenosis / Q000150:complications*; D013927:Thrombosis / Q000150:complications / Q000175:diagnosis* / Q000601:surgery