Primary Pleural Angiosarcoma in a 63-Year-Old Gentleman
Figure 4
(a) Histopathological examination of the right diaphragmatic pleural masses (magnification power, 40x) showing the neoplastic cells that grew mainly in sheets with focal areas suggestive of vascular spaces lined by cytologically malignant epithelioid cells. The neoplastic proliferation consisted of highly atypical large epithelioid cells with abundant eosinophilic cytoplasm, round to oval nuclei with marked pleomorphism, vesicular chromatin, and prominent single nucleoli. (b) Focal hemorrhagic areas were identified.
