Cakir, OEren, NOruç, ABuyukbayram, H2024-04-242024-04-2420020910-83271615-2573https://doi.org/10.1007/s003800200025https://hdl.handle.net/11468/14389Free-floating ball thrombi in the left atrium are rarely seen. They can cause sudden death by occluding the mitral valve. A 47-year-old female patient who showed signs of mitral stenosis during it physical examination and atrial fibrillation by electrocardiography was not administered anticoagulant therapy. On the transthoracic echocardiogram, a stenotic mitral valve and a floating mobile mass were seen inside the large left atrium. This mass was rounded (ball-like), had smooth contours, and occasionally occluded the stenotic mitral valve. The patient underwent emergency surgery to remove the mass, which was later proven to be a thrombus pathologically. Additionally, mitral valve replacement was performed. The importance of anticoagulant therapy for patients with rheumatic mitral stenosis has been emphasized by this case.eninfo:eu-repo/semantics/closedAccessMitral StenosisFree-Floating Ball ThrombusArticle165208210WOS:0001770888000092-s2.0-00363420271218159710.1007/s003800200025Q3Q4