CDKN2A and oropharynx squamous cell carcinoma: However, more studies will emerge from the HPV-AHEAD consortium and a new updated meta-analysis on diagnostic accuracy of p16(INK4a) immunohistochemistry in oropharyngeal squamous cell carcinomas is planned (which will include all studies from the meta-analysis by Prigge et al. [46], several HPV-AHEAD datasets and studies identified from the literature published after the meta-analysis of Prigge).