Fig. 2From: Pleural epithelioid angiosarcoma with lymphatic differentiation arisen after radiometabolic therapy for thyroid carcinoma: immunohistochemical findings and review of the literature a On low power magnification, the tumor consisted of “vasoformative” areas admixed with more solid areas. b Solid areas constituted by highly atypical epithelioid cells. c “Vasoformative” areas characterized by vascular channels lined by plumped atypical cells, lacking of red blood cells. d Vascular channels containing Alcianblue positive mucoid substance. a: 40×, H-E; b: 200×, H-E; c: 100×, H-E; d: Alcian-PAS, 200×Back to article page