As a consequence, the gene expression analysis of tumour and control samples was performed for the following genes only: BMP7, CD1D, CiDEA, CXCL14, CYP1A1, LEF1, LHX8, MAL, PCDH17, RIPK4, SCN3B, SLC44A3 and TCF7. This evidence concerns the gene LEF1 and neoplasm.