Figure 3.

This high-grade sarcoma shows muscle differentiation because of focally positive immunoreactivity to (A) calponin, (B) myoglobulin, and (C) smooth muscle actin antibodies. (D) It also expressed a high proliferation index by Ki-67 staining (×200).

Li et al. Diagnostic Pathology 2011 6:35   doi:10.1186/1746-1596-6-35
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