**3.1 Angiosarcoma**

Angiosarcoma is the most common primary malignant cardiac tumor (7). Men are involved more than female with a ratio of 2:1. Its usual location is right atrium and interatrial septum with involvement of pericardium and pericardial effusion [figure 3] (8). Other forms of sarcoma can occur in the left side of the heart and resemble the presentation of myxoma. It has a poor prognosis.

Fig. 3. Large tumor in right atrium with invasion toward interatrial septum and left atrium with pericardial effusion. In a 27 year old man who presented with progressive dyspnea.
