Figure 1
From: Primary angiosarcoma of the testis: report of a rare entity and review of the literature
Testicular tumor. A, Sectioned surface of testicular tumor shows an expansile hemorrhagic nodule displacing surrounding testicular tissue (gross). B, Angiosarcoma with classic architectural pattern composed of proliferation of anastomosing blood-filled channels, and focal solid pattern (hematoxylin-eosin, original magnification ×40). C, Angiosarcoma with classic architectural pattern composed of anastomosing small, apparently immature vascular channels, lined by crowded plump endothelial cells, proliferating in a fibromyxoid stroma (hematoxylin-eosin, original magnification ×200). D, Tumor cells with typical cytology of plump hyperchromatic, tufted endothelial cells with scant amphophilic cytoplasm. Note the presence of mitotic figures (hematoxylin-eosin, original magnification ×600).