Angiosarcoma of pericardium: a report of two cases.

ABSTRACT

Angiosarcomas are uncommon malignant neoplasms characterized by rapidly proliferating extensively infiltrating anaplastic cells derived from blood vessels and lining irregular, blood-filled spaces. The cells manifest many of the functional and morphological properties of normal endothelium. They are collectively one of the rarest forms of soft tissue neoplasms. Here we present two cases of pericardial angiosarcoma, one of them showing widespread dissemination, which caused considerable diagnostic dilemma and the diagnosis could only be established very late in their course of disease.