Giant Right Coronary Artery Aneurysm Presenting as Syncope.

Coronary artery aneurysms (CAAs) are rare findings, most commonly detected incidentally during coronary angiography or advanced cardiac imaging. Giant aneurysms of the right coronary artery are exceptionally uncommon and may lead to severe complications, including thrombosis, embolization, myocardial infarction, or sudden cardiac death. We present the case of a 78-year-old male who was diagnosed with a giant right CAA during evaluation for syncope. The patient underwent successful surgical excision of the aneurysm with revascularization of the right coronary artery. This case highlights the diagnostic value of coronary angiography and the role of surgical management in large CAAs.