Figure 3: Tumor analysis of G1 and G2 groups. ((a) and (d)) Lungs macroscopic view; ((b) and (e)) lungs microscopic view (2.5x); ((c) and (f)) primary tumors microscopic view (40x). One representative animal of each group is shown. (g) Tissue-free measurement in lungs, showing that coinjected animals presented an increase in inflammation areas in the lungs, despite not having died from respiratory insufficiency. Arrows indicate possible tumor masses near trachea in (a) and (d).