GIANT LEFT ATRIUM THROMBOSIS ASSOCIATED WITH AN ASYMPTOMATIC MITRAL VALVE DISEASE
M itral valve disease (MVD) can lead to an atrial fibrillation, a left atrium (LA) dilatation and thrombus formation. The aim of the study was to demonstrate a rare clinical case of a patient with asymptomatic MVD with the formation of the huge thrombus in the giant LA. Material and methods. An asymptomatic 49-year-old man underwent a preventive examination for cardiovascular diseases screening. His past medical history included the chronic tonsillitis only. There were no complaints or any heart disease symptoms. The patient underwent ECG, echocardiography, and after a cardiac surgeon consultation - cardiac MRI. Results. The ECG showed the atrial fibrillation. Echocardiography revealed a mitral valve lesion with a predominance of stenosis, a dilatation of the LA cavity with a formed mass. Cardiac MRI was performed by recommendation of the cardiac surgeon due to surgical strategy clarification and differential diagnostics with LA myxoma. MRI revealed 3 fixed blood clots in the left atrium. These findings were verified during surgery. Conclusion. Preventive screening of cardiac diseases with ECG and echocardiography are very important in people with the history of chronic tonsillitis.