GIANT CONGENITAL CORONARY-ARTERY FISTULA TO LEFT SUPERIOR VENA-CAVA AND RIGHT ATRIUM WITH COMPRESSION OF LEFT PULMONARY VEIN SIMULATING COR-TRIATRIATUM - DIAGNOSTIC-VALUE OF MAGNETIC-RESONANCE-IMAGING

A 3-year-old girl with a continuous murmur on auscultation was found t o have left coronary artery to right atrial fistula simulating cor tri atriatum sinister on echocardiography. Coronary angiography of the pat ient was also insufficient to clarify the exact pathologic anatomy. Ma gnetic resonance imaging showed that the main drainage of the aneurysm al coronary artery was to the left superior vena cava, resulting in a diffuse arteriovenous fistula in the lower lobe of the left lung by co mpressing its pulmonary vein.