Septated Complex ovarian cyst

I HAVE A SEPTATED COMPLEX OVARIAN CYST ABOUT 3 INCHES IN DIAMETER ON MY OVARY.   WE ARE DOING ANOTHER ULTRA SOUND IN 30 DAYS.  MY GYN SAYS THAT IF IT HAS GROWN WE WILL MORE THAN LIKELY DO A FULL HYSTERECTOMY WITH LARGE INCISION SO HE CAN SEE ALL THE TISSUE, IF IT HASN'T GROWN, HE WILL TRY TO REMOVE IT WITH A SCOPE AND SMALLER INCISION AND IF IT HAS SHRUNK, PROBABLY JUST THE SCOPE AND DO AN ABLATION.  MY BLOOD TESTS SEEMED WITHIN NORMAL LIMITS.

THIS IS MY SECOND CYST.  THE FIRST WAS REMOVED WHEN I HAD A TUBAL, HOWEVER, IT WAS NOT COMPLEX.  


THERE IS ALSO THICKENING OF THE ENDOMETRIUM.  THE ONLY THING I HAVE FOUND  ON THE INTERNET IS THAT THE CHANCES OF MALIGNANCY ARE HIGHER IF THERE IS A THICKENING AND IF A CYST IS COMPLEX.  i WANT TO KNOW WHAT THE % IS OF THIS TYPE OF CYST BEING MALIGNANT.

I AM 45 YEARS OLD, HAD 2 SUCESSFUL PREGNANCIES, ONE ONLY 6 YEARS AGO.

I JUST WANT TO KNOW THE ODDS AS I DON'T SEE MY GYN FOR ANOTHER MONTH.  

THANKS

jACKIE LU