Fig. 2From: Immune landscape and in vivo immunogenicity of NY-ESO-1 tumor antigen in advanced neuroblastoma patientsPresence of immune infiltrating cells in NBL before the vaccination. IHC was performed on consecutive sections of FFPE tumor samples. Representative hematoxylin-eosin (HE) and IHC images of intratumoral CD3, CD68 and CD163 positive cells are shown for the three enrolled patients: Pt#1, 2, 3. Scale bar = 200 μm for HE and 100 μm for the other panels. For higher magnification see Additional file 3: Figure S2Back to article page