Heavy bleeding during menopause. Report.

Hi doctor My mother is 53 years old and having very heavy bleeding during periods. She had irregular periods for quite sometime. We were of the thought that since she is aged and the menopause is about to stop, it is normal to have heavy bleeding. However, since it was unbearable, we went to gyno. She said that the uterus seems ok from outside. But it good to take biopsy and mammogram. So we took biopsy. The report says - disordered proliferative pattern endometrium - sections show predominantly blood clots along with fragments of endometrial stroma with glands in disordered proliferative pattern, congested blood vessels, and areas of hemorrhage. Few glands shows cystic dilatation. Please clarify on whether it is a cancer. What is the cure or treatment for the above report. Thanks in advance.