[Infectious Thoracic Aortic Aneurysm and Purulent Pericarditis due to Staphylococcus aureus:Report of a Case].

The objective of this case report is to highlight a rare case of infectious thoracic aortic aneurysm and purulent pericarditis simultaneously in a 56-year-old woman. The patient complained of left anterior chest pain and contrast computed tomography (CT) revealed infectious thoracic aortic aneurysm and purulent pericarditis accompanied by massive pericardial effusion. She underwent a pericardial drainage immediately, and antibiotic treatment was initiated.