<qa>  What is the purpose of the study?This study is designed to obtain preliminary data of genomic and phenotypic alterations of the EGFR pathway in high grade cervical intraepithelial lesions HG-SIL and invasive cervical cancers CC to be used later for therapeutic guidance and to evaluate genomic over-expression, amplification, point mutations, etc. and phenotypic alterations of other transduction pathways interacting with the EGFR pathway. 