Surgery Which of the following is the most impoant prognostic factor in breast cancer? A Histological grade of the tumor B Stage of the tumor at the time of diagnosis C Status of estrogen and progesterone receptors D Over expression of p-53 tumour suppressor gene 💡 Explanation Which of the following is the most impoant prognostic factor in breast cancer? ✓ Correct Answer: B. Stage of the tumor at the time of diagnosis