Fig. 3
From: Immune characterization of metastatic colorectal cancer patients post reovirus administration
shows pre- (a) and post- (b) reovirus IHC staining of the biopsied tumor tissue stained with granzyme B at 40X magnification. Post reovirus (b) section shows atrophy of tumor cells in discrete islands with strong staining for granzyme B and surrounded by fibrous connective tissues a phenomenon commonly observed post tumor regression