**2. Definition and epidemiology**

The aneurysms are uncommon, are usually, 1 cm to 14 cm in size and taking the rarity of reporting into account, the aneurysms are seen in less than 1% of coronary bypass patients on follow up (5). Aneurysms are seen at an average age of 59 years and more often in men (5). Saphenous vein graft aneurysms, like the aneurysms elsewhere are defined as vessel dilations of 1.5 times the size of the reference vessel and were first described 7 years after the first Coronary Bypass surgery in 1975 (6).
