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Fig. 4 | Journal of Medical Case Reports

Fig. 4

From: Bilateral collagenous fibroma of the hard palate: a case report and review of the literature

Fig. 4

Immunohistochemical findings of the collagenous fibroma. A Tumor cells were strongly positive for vimentin (× 400). B Tumor cells were negative for beta-catenin (× 400). C Smooth muscle actin staining smooth muscle cells in blood vessels with no reaction in tumor cells (× 100). D CD34 staining endothelial cells of blood vessels with no reaction in tumor cells (× 100)

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