Multidetector-row Computed Tomography in Diagnosis of a Large Right Coronary Artery Aneurysm Resulting from Arteriovenous Fistula

Coronary artery aneurysm with arteriovenous fistula is an uncommon condition. We report a 52-year-old male with a large right coronary artery aneurysm resulting from a coronary artery-to-rights ventricle fistula. The aneurysm and the fistula were demonstrated by an electrocardiography-gated multidetector-row computed tomography coronary angiography. Three mouths after surgery, the computed tomography coronary angiography showed no fistula, and the distal right coronary artery was bypassed with a saphenous graft. Thus, we concluded that in some instance multidetector-row computed tomography coronary angiography may be helpful for diagnosis and demarcation of coronary artery aneurysm with arteriovenous fistula.