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Redaporfin-PDT induces strong haemorrhage and necrosis that is accompanied by T cells infiltration but not by B cells infiltration (10x magnification). (A) Tumours from control and treated mice (at the indicated time points) were stained with H and E, H indicates haemorrhagic areas and N indicates necrotic areas. (B) T cells (CD3+) (brown) infiltration. (C) Absence of B cell (Pax5) infiltration.
