[Giant aortic arch aneurysm following ligation of patent ductus arteriosus in an adult patient with Down syndrome; report of a case].

A 45-year-old male with Down syndrome( DS) had abnormal findings pointed out by chest X-ray and admitted to our hospital. He had undergone ligation of the patent ductus arteriosus 33 years before. Computed tomography showed a giant aortic aneurysm at the aortopulmonary window.

[Left atrial myxoma who presented cardiac arrest immediately after the onset of coldness of a leg; report of a case].

A 55-year-old woman visited the emergency department of our hospital with complaint of coldness and pain in her right leg. Two hours after the onset, she suddenly felt dyspnea and temporarily suffered cardiac arrest. Echocardiography revealed a left atrial tumor prolapsing into the left ventricle through the mitral valve.

[Thoracic aortic rupture resulting from methicillin-resistant Staphylococcus aureus infection: report of a case].

We report a successful surgical treatment of an aortic arch rupture caused by methicillin-resistant Staphylococcus aureus (MRSA) infection in a 72 years old man who had back pain and hemoptysis as symptoms. Computed tomography showed enlargement of the aortic arch within just 4 days. We diagnosed the state of impending rupture of inflammatory aneurysm and performed emergent operation.