The case shows coronary arteries grafts aneurysms as a complication following bypass surgery ten years ago (LIMA-LAD, SVG-D1, RCX, RCA).

Thrombosed aneurysms involving right and left circumflex venous grafts are seen. The patient also has proximal right subclavian artery aneurysm and supraaortic vessel variation. CT angiography is valuable method in such rare conditions mimicking mediastinal mass on plain films.