The consequences of aberrant EGFR tyrosine kinase activity include increased tumour cell proliferation, survival and invasiveness (Salomon et al, 1995; Perrotte et al, 1999), as well as the overexpression of proangiogenic factors such as VEGF (Goldman et al, 1993; Gille et al, 1997). This evidence concerns the gene VEGFA and neoplasm.