title: Transient ("hole-in-one") occlusion of the mitral valve orifice by a free-floating left atrial ball thrombus: identification by two-dimensional echocardiography.
mesh_terms: D000328:Adult; D004452:Echocardiography; D005260:Female; D006325:Heart Atria / Q000473:pathology; D006331:Heart Diseases / Q000150:complications* / Q000473:pathology; D006801:Humans; D008946:Mitral Valve Stenosis / Q000209:etiology* / Q000473:pathology; D013927:Thrombosis / Q000209:etiology* / Q000601:surgery