title: Idiopathic cystic medionecrosis and aneurysms of the ascending aorta.
mesh_terms: D000328:Adult; D001011:Aorta / Q000473:pathology*; D001014:Aortic Aneurysm / Q000209:etiology* / Q000601:surgery; D006801:Humans; D008297:Male; D009336:Necrosis