Sporadic versus Radiation-Associated Angiosarcoma: A Comparative Clinicopathologic and Molecular Analysis of 48 Cases

<table>Nuclear staining for Ki-67 in greater than half the cells was present in 40% of radiation-associated angiosarcomas, indicating very high proliferative activity (immunoperoxidase, 400x).</table>

Sarcoma

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Figure 6

Figure 6: Sporadic versus Radiation-Associated Angiosarcoma: A Comparative Clinicopathologic and Molecular Analysis of 48 Cases 