Overall, 68% of prescreening samples expressed TYRP1 at any level (at least 1% TYRP1 tumor cell expression at staining intensities equal to or greater than IHC 1+) and 51% of participants expressed TYRP1 when using a 25% TYRP1 tumor cell expression cut-off at staining intensities equal to or greater than IHC 1+. This evidence concerns the gene TYRP1 and neoplasm.