Although numerous studies have indicated possible associations between IL-6 and tumor-related factors, including estrogen receptor (ER) status [25], hormonal regulation of IL-6 production—particularly by estrogen [26]—and links between elevated serum IL-6 levels and unfavorable prognosis, our findings did not reveal any significant correlation between IL-6 and the clinical variables analyzed. The gene discussed is IL6; the disease is neoplasm.