CASZ1 and neoplasm: The low expression of CASZ1 was significantly correlated with old age (>55 years) (p = 0.037), large tumor size (p = 0.004), high WHO/ISUP grade (p < 0.001), and high T category (p < 0.001) and M category (p = 0.008) but not correlated with gender or N category.