IL6 and neoplasm: Mean (±SD) total tumor volume (TTV) was 13.6 (±6.2) mm3 (median 16.2, IQR: 9.3–17.3) in the IL-6 KO, while it was 21.9 (±6.6) mm3 (median 18.1, IQR: 16.2–28.3) in the WT subgroup.