CD68 and neoplasm: Cox stepwise regression twenty-year multivariate survival analyses were performed, including age at diagnosis, gender, TNM stage of tumor, HPV tumor status and smoking history as the first block, additionally with one of the following variables as the second block: CD3 TIL cells, FoxP3 TIL cells, tumor CD68 cells, HE-inflammatory cells, HE-desmoplasia, HE-nuclear polymorphism or HE-invasion (Table 3).