[Left atrial thrombosis and acquired coronary artery fistulae: report of a case].

Many cases of fistulae between coronary arteries and heart chambers are now detectable because of improvement in selective coronary artery angiography. Coronary fistulae may be congenital or secondary to cardiac disease such as atrial tumors, mitral stenosis with atrial thrombosis or ventricular aneurysm. A case of a patient with rheumatic heart disease and multiple fistulae between coronary arteries and left atrium, is reported. A thin mural thrombus adherent to the left atrial wall, unsuspected preoperatively, was discovered at surgery and gave the clue to the pathological origin of the fistulae.