### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
I was diagnosed with anemia on march 5 and they prescribed me iron which I taken3 times a day. They determined it was due to my periods. I went to obgyn and pap smear is normal but they did a pelvic ultrasound and saw a mass on my uterus and they said my uterus was enlarged. They have referred me to obgyn oncologist which my appt is monday. I have cramps my back and leg hurt every time I stand and my ca 125 level was 300. Is there a good chance this is cancer. I want a hysterectomy because for the past year I have dealt with my periods being so heavy I have to sit on toilet

### output:

Hello, thanks for using Chat Doctor. Ca 125 as you already know is a marker for cancer. It increases in cancers of the digestive system and those of the reproductive system including the ovaries, fallopian tubes, endometrium of uterus etc. It is highly used in the diagnosis and follow-up of ovarian cancer. Ca 125 is not specific to a particular disease and does not necessarily indicate a malignant disease. It could be elevated in benign conditions such as uterine fibroid as well. From your history; heavy menses, anemia, enlarged uterus etc., there is a good chance that what you have is a uterine fibroid. The only problem is that the ca 125 level is far above the normal which is 35 (300 in your case). The appearance of uterine fibroid on ultrasound is particular, and you should see your ultrasonographer to say if the mass was not well round and with borders and characteristic of fibroid. If it's a fibroid or none metastasized cancer, hysterectomy will be just fine. Best regards and hope this helps. Chat Doctor. 