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. 2022 Apr 11;23:139. doi: 10.1186/s12882-022-02775-x

Fig. 2.

Fig. 2

Tumor cells were spindle shaped cells with rod like hyperchromatic nuclei (A). Only one mitose was observed per 50 HPF (HE stain, × 400). The tumor cells were positive for CD117 (× 400) (B), Dog-1 (C) and Vimentin (D), while stains for CD34 (E), smooth muscle actin (SMA) (F), desmin (G) and s-100 (H) were negative. The positive ratio of Ki-67 staining was less than 10% (I)