A case of a 66-year-old male with acute myocardial infarction (MI) treated with streptokinase is presented. Due to the recurrence of angina six days from the acute phase of MI, the patient underwent coronary angiography which revealed critical stenosis of the left anterior descending coronary artery. During intracoronary intervention, stent was lost and migrated to the left ventricular cavity, being trapped in chordae tendinae of the posterior mitral leaflet. The procedure was stopped. After transferring the patient to our department a few days later, a successful non-surgical retrieval of stent with the use of biopsy forceps was performed. Treatment of dislodged coronary stents is discussed.