We report a case of angiosarcoma of the right atrium, which manifested as cardiac tamponade. A 50-year-old man was admitted to our hospital complaining of dyspnea on effort. Echocardiography and chest CT revealed massive pericardial effusion and a right atrial tumor mass. An emergency pericardiocentesis was performed to remove massive hemorrhagic fluids. Further examinations revealed primary cardiac neoplasm. Because there was no distant metastasis, the tumor in the right atrium was resected with the right atrial free wall under cardiopulmonary bypass support. The sinus node involved in the tumor was resected, necessitating pacemaker implantation. Microscopic examination of the resected tumor revealed angiosarcoma. As the resection border showed tumor tissue, postoperative radiotherapy was added. There was no evidence of recurrence or metastasis 14 months after surgery. The prognosis for angiosarcoma is very poor, and mean survival is less than 6 months. In cases with no metastases, early resection is the treatment of choice. In spite of incomplete resection, long-term survival may be possible with postoperative radiotherapy.

A 72-year-old woman underwent surgical stent graft implantation for a huge distal arch aneurysm (12×11cm). Axillo-bifemoral bypass was added in order to restore visceral perfusion. Severe metabolic acidosis developed after the operation, and the patient died 6 hours after surgery. Autopsy showed thromboembolism of the superior mesenteric artery and aortic dissection in the descending thoracic aorta because of stent graft insertion into a false lumen. To reduce complications like this case, we should consider the peculiar anatomic features and thoroughly evaluate atheromatous changes in the aortic wall with improvement of the shape of the sheath and delivery system.

A 52-year old man was referred to our hospital for atrial fibrillation ablation therapy. A multislice computed tomography study demonstrated a giant coronary artery aneurysm situated just proximal to the left anterior descending (LAD), LAD stenosis and coronary-pulmonary artery fistula. The fistula was ligated and the aneurysm was resected under cardiopulmonary bypass. The left internal thoracic artery was used as a bypass graft to the LAD as well as a patch for closure of the LAD orifice to avoid left circumflex artery stenosis. We report a rare case of giant LAD aneurysm with coronary-pulmonary artery fistula.

Fifty-two-year-old man who suffered from headache and left neck pain was brought to a nearby hospital by ambulance. Anisocoria and disorder in the field of view of the left eye were observed. Emergency brain MRA showed obstruction of the left internal carotid artery. The patient was transported to our hospital for emergency surgery for suspected acute type A aortic dissection on CT scan. Operative findings revealed a thrombus attached to the ascending aorta continued to left common carotid artery. Thrombectomy for left carotid artery and partial arch replacement were performed. The patient was discharged in good condition on the 16th postoperative day. We encountered a very rare mural thrombus in the ascending aorta.