Fig. 1From: Apatinib treatment for KIT- and KDR-amplified angiosarcoma: a case reportHematoxylin and eosin (H&E) staining of a tumor section. a × 400; The tumor cells are spindle shaped with obvious heteromorphism(white arrow), and large areas of necrosis(hollow arrow) are visible; b × 400. CD34 cell membrane positive(black arrow). c × 400. Immunohistochemistry demonstrates expression of VEGFR2 with color brown (black arrow)Back to article page