Fig. 2
From: Case report: a case of primary intracranial parasagittal meningeal angiosarcoma
Histological and immunohistochemical features. A Hematoxylin and eosin staining of tissue samples showing the epithelioid appearance and angiogenesis of the tumor and a large number of new abnormal blood vessels, marked cell atypia, and marked nuclear staining. Immunohistochemical staining for vascular markers, such as CD31 (B), CD34 (C), factor VIII associated antigen (D), vimentin (E) and Ki-67 (F), showing strong positivity within the tumor cells. Pictures A, B, C, D and E were taken at 100 magnification, picture F was taken at 200 magnification