Figure 2 illustrates different examples of immunostaining: a pTa UC with intense staining of more than 10% of tumour cells (Fig. 2f), a pT1 UC with heterogeneous staining of more than 10% of tumour cells (Fig. 2g), and a pT2 UC that was negative for A-FABP (Fig. 2h). This evidence concerns the gene FABP4 and neoplasm.