How much is Ki67 for benign tumors?

Ki67 is the activity of cancer cells, that is, a proliferation index of it. Different tumor criteria are also different, generally 10% as a cut-off value. Ki67 marks cells in the proliferation cycle. The higher the positive rate of this marker, the faster the tumor growth rate, the worse the tissue differentiation, the more sensitive to chemotherapy, and generally the worse the prognosis. Ki67 predicts the malignant degree of malignant tumors. The higher the positive rate, the higher the malignant degree. Ki67 is associated with cell division and is also used to determine sensitivity to chemotherapy. Ki67 is a common marker for tumor immunohistochemistry.