Ovarian cyst with solid components

Hi so I'm quite anxious I posted awhile back saying I'd been referred to a gynaecologist in the oncology department after having some post menopause bleeding. Since then I've had two cancer marker blood tests one of which came back normal one im waiting on results I've had an internal ultrasound a hysteroscopy a mri and I'm due to have a ct scan tomorrow they've said regardless I'll have an operation to have my ovaries removed but they've said the mri showed some solid parts in the cyst which could be borderline cancer but they aren't sure until they remove it I'm so scared as I know solid parts can mean cancer has anyone had a similar experience and it not be the worst case can benign cysts have solid parts and not be cancer I'm so scared I can't concentrate on anything. The cyst is 13cm I'm 62 and went through the  menopause  in my 40s would just like to hear if anyone has had a similar scenario and looking for some reassurance. Many thanks in advance