Fig. 2

Histopathological analysis of the mice lung. Control – normal lung tissue (a, b); lungs at 2 weeks after cancer cell injection with visible sites of inflammation, mainly granulocyte infiltration (c, d); 4-week group lungs with few small metastatic focuses (e, f); 5-week group lungs with many visible scattered metastatic sites of different sizes (g, h); and lungs at 6 weeks after cancer cell injection, with numerous, extensive, merging metastatic areas (i, j). Magnification 20×: a, c, e, g, i; 200×: b, d, f, h, j (magnification of chosen area)