Postoperative histopathology of the first operation (No.09085396).
(a) Stained with H&E double stain for light microscopic observation. (magnification, ×200, ×400). (b) No tumor cells show positive immunoreactivity for CD117 (magnifications, ×200, ×400). (c) Extensively and moderately positivity within the cell membrane and cytoplasm for CD34 (magnifications, ×200, ×400).