High-resolution anoscopy predictive modeling of anal canal cancer response after definitive chemoradiotherapy in COVID19 era

•Response to chemoradiotherapy is a major issue in the management of canal anal cancer.•New predictive models to improve clinical evaluation are needed especially in COVID19 era.•High-resolution anoscopy (HRA) could reserve a potential to achieve a risk score.•The aim is to share our proposal to estimate a HRA-based risk treatment failure score in COVID19 era.