Giant coronary aneurysm associated with aortic mucoid medionecrosis.

A case of sudden death due to rupture of a dissecting aneurysm of the ascending aorta in a 38-year-old man is presented. The patient had a clinical history of severe hypertension. The autopsy also revealed the presence of a voluminous aneurysm of the right coronary artery and a solitary multilocular cyst of the right kidney. It is thought that a prodromal influenza-like syndrome and the renal lesion could have played a role in causing the vascular pathology.