Primary pulmonary artery sarcoma extending retrograde into the superior vena cava.

Primary pulmonary artery sarcoma is a rare tumor that is highly fatal. It can be misdiagnosed as acute or chronic pulmonary thromboembolic disease. Herein, we report the case of a 22-year-old woman with a preoperative diagnosis of pulmonary embolism and superior vena caval thrombosis.

Prolapse of noncoronary aortic cusp with severe aortic regurgitation after a tear of the aortic root.

A patient with acute aortic regurgitation, a dissecting aneurysm with a localized transverse tear just above the aortic valve, and an aortic noncoronary cusp eversion is discussed. The valvular defects were considered to be of recent etiology, and the patient underwent successful aortic valve replacement and repair of the dissection.

Disappearing signs of acute myocardial infarction in a patient with viral myocarditis.

A case of acute viral myocarditis with the rapid appearance and disappearance of clinical, laboratory, electrocardiographic, and vectorcardiographic signs of acute myocardial infarction is described in this report. Although segmentary alterations in contractility were demonstrated by ventriculography, coronary angiography revealed normal coronary arteries.