FKBP5 and neoplasm: Based on the determination of the values of p, the first conclusions we draw from the statistical analysis of the data are: (i) FKBP51 IHC expression inversely correlates with tumor HPV status both in the overall study population (p = 0.0026) and particularly in the oropharyngeal samples (p < 0.0001); (ii) patients with OSCC can be divided into three categories of risk depending on the positivity to the marker FKBP51.