Figure 1From: Establishment of canine hemangiosarcoma xenograft models expressing endothelial growth factors, their receptors, and angiogenesis-associated homeobox genes Gross appearance of Ud xenograft tumors at 24 days after transplantation, which was transplanted repeatedly 20 times. The xenograft tumor was solid, dark red in color, and contained necrotic and blood-filled areas on the cut surface. Bar: 2.5 mm.Back to article page