Transcription factor ERG is a specific and sensitive diagnostic marker for hepatic angiosarcoma

Figure 3 Analysis of hepatic angiosarcoma histology with hematoxylin and eosin staining. A: The tumor was similar in appearance to a cavernous hemangioma on the inside and was lined by endothelial cells of similar shapes (× 200); B: Endothelial cells are distended with a spindle or polygonal morphology. Frequent mitotic events (indicated by arrow) and a pale eosinophilic cytoplasm were also observed (× 300); C: Tumor cells were observed growing around the vascular lumen and formed a vascular lumen-like structure (× 300).