Introduction:
Left atrial ball thrombus is a rare condition that was first described on autopsy in 1814. Left atrial ball thrombus is predominantly associated with mitral valve disease [1] . The frequency of embolic events in patients with ball thrombi is high 54%[2] , and can lead to sudden death [3] .
We report on a patient with a left atrial ball thrombus combined with rheumatic mitral stenosis, which was detected during echocardiographic in the context of an etiological assessment of an ischemic stroke.