In addition, in the face of reports by Iurisci et al. who found that serum galectin 3 levels were higher in 7 studied tumor types, namely, breast cancer, stomach cancer, lung cancer, ovarian cancer, melanoma, Hodgkin’s lymphoma, as well as non-Hodgkin’s lymphoma compared to the control group; galectin 3 cannot be used as a diagnostic biomarker [21]. The gene discussed is LGALS3; the disease is breast cancer.