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Angiosarcoma simulating anastomosing hemangioma. (A) The anastomosing channels in this angiosarcoma mimic the appearance of anastomosing hemangioma (H&E stain, ×10). (B) The channels are lined by endothelial cells with a degree of atypia that exceeds what is acceptable for anastomosing hemangioma (H&E stain, ×40).
