Figure 4From: A huge malignant solitary fibrous tumor of kidney: case report and review of the literatureImmunohistochemical staining. Left panel, the lesion showed diffusely strong CD34 (A), CD99 (C), Bcl-2 (E) staining and an 85% Ki-67 proliferative index (G) (×200 original magnification). Right panel, the other lesion showed diffusely negative CD34 (B), positive CD99 (D), positive Bcl-2 (F) staining and a 20% Ki-67 proliferative index (H) (×200 original magnification).Back to article page