Within all leukocytes (CD45+ leukocytes and CD68/CD163 subsets combined), CD45+ leukocytes generally had the highest cell density relative to total cell density (16.0 - 45.5% in tumor nests or squamous epithelium and 85.2 - 96.2% in stroma) (Figure 1F). This evidence concerns the gene CD68 and neoplasm.