Figure 2.

Immunohistochemical analysis on the sarcomatous component (smooth muscle actin). Fascicular spindle cells of the sarcomatous component are immunoreactive for smooth muscle actin in their cytoplasm. Internal control is positive, as shown by blood vessels staining.

Ambrosini-Spaltro et al. BMC Cancer 2006 6:185   doi:10.1186/1471-2407-6-185
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