Fig. 3From: Primary cardiac myxofibrosarcoma of the left atrium and pericardium: a case reportHistological images(a) An examination with hematoxylin and eosin staining technique showed spindle shaped and pleomorphic cells with hemorrhage and necrosis. Bizarre, multinucleated giant cells, and cells with irregular-shaped nuclei were often noted. (b, c, and d) Immunohistochemical tests showed tumor cells were positive for alpha-SMA and vimentin, and rarely positive for desminBack to article page