Figure 3.
Schematic drawing of a tumour section for histopathological analysis. Heterogeneity within a tumour is depicted by different colours of the tumoral cells. Stromal cells and infiltrating cells of the immune system are coloured in grey and orange, respectively. Variables considered for the evaluation of the tumour sample are indicated in the boxes above the slide. New methodologies, proposed to improve the diagnosis, are shown in the boxes below.