Contrast-enhanced multi-slice computed tomography showed a 7-cm non-thrombosed gCCA located near the mid-portion of the left anterior descending coronary artery (LAD), and right coronary artery fistula draining into the pulmonary artery (Figure A,B) . Coronary angiography showed a gCCA originating from a branch of the LAD (Figure C) , with a fistulous connection to the pulmonary G iant coronary artery aneurysms (gCAA) >5 cm are very rare (0.02%). 1-3 An 80-year-old woman with chest pain on

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... t presented to her private clinic and was admitted to hospital for chest X-ray. There was no elevation of serum creatine kinase or troponin T. Transthoracic echocardiogram showed a 68×71-mm large cystic mass containing low echoes adjacent to the left ventricle.