Infectious causes of aortitis
Bacterial aortitis due to Salmonella , Staphylococcus , or Streptococcus usually results from bacterial seeding of an atherosclerotic plaque or aneurysmal sac via the vasa vasorum. Tuberculous may cause aortitis from direct seeding from adjacent infected tissue or military spread.
Aortitis is the classic cardiovascular manifestation of tertiary syphilis. Syphilitic aortitis typically involves the ascending aorta and may result in aneurysm or aortic regurgitation.
