IL13 and breast angiosarcoma: Consistent with this, significant fibrosis in BA patients was found to be significantly associated with increased plasma levels of IL-7 (OR = 1.54, 95% CI: 1.11, 2.12, P = 0.010), eotaxin (OR = 1.09, 95% CI: 1.02, 1.61, P = 0.010), IP-10 (OR = 1.01, 95% CI: 1.00, 1.01, P = 0.027), and IL-13 (OR = 51.26, 95% CI: 2.84, 924.74, P = 0.008).