Dermoid cyst or Brenner tumor???

Which is more accurate in diagnosing ovarian mass ..ultrasound or mri?

Ultrasound the vaginal way cause they show the pictures of the ovaries that is how they found out i had them

Hi

The best to have is a CT with dye it is much more detailed x

Thanks for your reply ..I have had a small something on my left ovary that my gyno always said was a fibroma and sent me on my way two years ago ..now I'm feeling pelvic discomfort so I went back to him ..he then sent me for an mri and ca125..Mri showing Brenner tumor/ fibroma ..ca 125 is normal .i expressed my concerns about having it removed so it sent me to a gyno oncologist ..told me to go talk to him but it isn't urgent ..gyno oncologist sent me for a transvaginsl ultrasound which is stating that it looks like a possible dermoid cyst ..I am opting to have it removed along with ovary and both Fallopian tubes because I feel everything is so not definitive ...very nervous about this whole situation .so worried about ovarian cancer ..