Giant congenital coronary aneurysm of the left anterior descending artery.

Coronary artery aneurysms are uncommon, especially in young patients. Most aneurysms in young patients are congenital, traumatic or due to Kawasaki disease. Giant coronary aneurysms warrant surgical management due to their propensity for complications. Coronary artery bypass grafting (CABG) with suture closure of the involved coronary artery seems to be an appropriate management strategy. We describe a giant coronary artery aneurysm of the left descending coronary artery, 15 x 18 cm in size, occurring in a 27-year-old male patient. This report underscores the need for further investigation to find the primary pathological defect causing giant coronary aneurysms, which often eludes us. Our experience suggests that this entity should be considered in the differential diagnosis of any young patient with chest pain.