CSF1R and neoplasm: Nevertheless, extensive correlation analyses (Table 2) in our patient cohort reveal strong positive associations between CAFFAP and stromal expression of colony-stimulating factor receptor 1 (CSF1R) and micro-RNA 21 (miR21) in SCC and stromal expression of hypoxia-induced factor 2 (HIF2) in ADC and strong negative association with tumor cell expression of monocarboxylate transporter 3 (MCT3) in ADC.