Figure 5.

Histopatholgy of VX2 tumors following yttrium-90 radioembolization (a,c) versus untreated control rabbit (b,d). a) H&E demonstrates necrosis with inset at 200x optical magnification demonstrating microsphere (arrow) in the tumor periphery. b) Untreated control tumors demonstrated viable tissue and focal areas of necrosis (scale bar = 5mm). Masson’s trichrome staining at 25x optical magnification shows no difference in fibrosis between c) yttrium-90 treated rabbits and d) control rabbits at 2-weeks.