my personal view (not medical view) is that if possible try everything else and kep a hyst as a last resort.
However, when it comes to cancer of the cervix/uterus unless in the very early stages, often a hyst is the best form of "cure".
You ought try to make an appt with your doctor to sit down and discuss this.
not at a gyn appt, but make an appt to sit and talk.
Take a notepad and jot things down.
make a list of questions before you go and leave spaces to note answers so you can refer back.
things like
do I have cancer?
how advanced is it?
what are the possible options for treatment?
what does each one entail/how is it performed?
what are the success rates of each one?
may I be so nosey as to ask how old you are and why you want to keep your uterus?
If you are hoping for children I understand, if you are older and are done having children, then maybe consider a hyst where the ovaries are retained.
it is the ovaries that produce the hormones and help reduce the need for hrt and the risk of osteoporosis.
good luck