Right sinus of Valsalva aneurysm.

Aneurysms in the sinuses of Valsalva (SVA) are the least frequent and occur due to a weakness in the aortic wall that forms part of the sinus. This causes dilatation and the formation of a blind pocket in one of the aortic sinuses (usually he right sinus and less frequently the posterior one). It may be congenital or acquired: in a congenital SVA, the condition is frequently associated with Marfan's syndrome or other connective tissue disorders; instead, acquired forms of sinus of Valsalva aneurysm are associated with infections (syphilis, bacterial endocarditis, and tuberculosis), atherosclerosis and medial cystic necrosis, traumatic and degenerative diseases, abuse of drugs or alcoholism. Despite SVA is a well-known anomaly, autopsy images or reviews of the condition are very uncommon. Indeed we report here a fatal case of SVA in a 58-year-old homeless man found dead on the street. The autopsy, performed to determine the cause of death, releaved a massive aneurysm (in excess of 4 cm) involving the right coronary sinus of the aorta. In this case, the aneurysm may be an accidental finding: in effect we found no tromboses inside the aneurysm and the ostium was not obstructed, therefore the cause of death could be attribuited to fatal arrhythmia.