Figure 4From: Intra-abdominal angiosarcoma developing in a capsule of a foreign body: report of a case with associated hemorrhagic diathesisMicroscopic findings of the angiosarcoma in the small intestine. 4a) Atypical spindle or epithelioid tumor cells were arranged in sheets, and rudimentary lumen formation was rarely noted. (H&E, × 200) 4b) The tumor cells are strongly positive for anti-CD31. (PAP, × 100)Back to article page