Figure 6
Photomicrographs showing spindle-shaped cells, cytoplasmic immunoreactivity and vascular endothelial cells. (A) Interlacing bundles of spindle-shaped cells (HE stain, original magnification × 100). (B) Spindle-shaped cells with tapered blunt-ended nuclei and pale-staining eosinophilic cytoplasm (HE stain, original magnification × 400). (C) Cytoplasmic positive immunoreactivity for vimentin (original magnification × 400). (D) Cytoplasmic positive immunoreactivity for HHF-35 (original magnification × 400). (E) Cytoplasmic positive immunoreactivity for α-SMA (original magnification × 400). (F) Vascular endothelial cells with cytoplasmic positive immunoreactivity for CD34 (original magnification × 200). HE, hematoxylin and eosin.