Study cohort had 432 patients and 308 of tumours expressed ERCC1. Staining was conducted using Abcam® mouse monoclonal antibody and expression of ERCC1was evaluated by 2 pathologists. Chi-square test was made to assessed differences between ERCC1 expression. All analyses were performed with STATA®, version 13.1.Primary tumour samples collected at RC, cells were lysed and total RNA was extracted with Qiagen® kit. ERCC1 mRNA expression was measured by RNA sequencing and confirmed by qPCR using TaqMan® gene expression assays. This evidence concerns the gene ERCC1 and neoplasm.