Fig. 2From: Prognostic usefulness of a modified risk model for solitary fibrous tumor that includes the Ki-67 labeling indexImmunohistochemical findings in conventional and dedifferentiated SFTs. a Tumor showing diffuse and strong nuclear expression of STAT6. b Tumor cells with no STAT6 expression in dedifferentiated areas. c Tumor showing a variable degree of Ki-67 positivity. Many areas had a low Ki-67 labeling index. d Tumor cells in dedifferentiated areas showing a high Ki-67 labeling indexBack to article page