IL17A and invasive breast carcinoma: The median serum IL-17A concentration in women with early invasive breast cancer before surgery and during adjuvant therapy was 1.82 pg/ml (1.15-4.72) and 1.25 pg/ml (1.00-2.05), respectively, while the median serum IL-17A concentration in healthy controls was 1.05 pg/ml (0.65-1.48).