Hi, I am an RN and my wife was recently Dx with granulosa Cell cancer( GCT) Jan 2010. Tests like sonograms, Cat scans and MRI's along with blood tests like CA125, Inhibin A&B, MIS and CEA are just used as a guides for the Dr's to help assist in making a diagnoses(Dx). Based on your TV-sonogram report, and symptoms unfortunately with any type of suspected ovarian mass surgery will be the only way for the Dr's too make a definitive Dx. It is NOT recommended to biopsy any ovarian mass as it will rupture and seed the pelvis with cancer cells if that what it turns out to be. Please make sure they drew your blood for the following blood tests,Inhibin A&B, CA125 and CEA so at the very least you have baseline blood work.
Since there is some suspicion based on your TV-sonogram I would immediately find a good GYN/Oncologist surgeon. I would reccomend going to a large tiertiary hopsital where they see large volumes of patients. This is not to make you worry even more but to make sure that the Dr who treats you has vast experience with diagnosing and treating various types of GYN / Onc issues if that is what it turns out to be. If the Dr wants to remove the cyst/mass via laprascopic procedure PLEASE make sure they have much experience with removing these INTACT! All too often I read posts from patients who say their Dr thought it was a cyst and removed it haphazardly causing a rupture and seeding of the pelvis with cancer cells, only to be found on pathology post removal.
Next: From experience I would be asking for an MRI of the abdomen/pelvis ,MRI's are very precise when read by a Radiologist that specializes in GYN/ONC, My wife went to a radiology practice that does all types of MRI's and the Radiologist read her MRI as a fibroid. I then took her to Sloan Kettering in NYC to see a GYN/ONC surgeon Dr Carol Brown who had the MRI repeated by a GYN/ONC Radiologist who called her DX to the tee which was confirmed after surgery.
The best advice you see all over these posts is you have to be your own advocate, be aggresive and stay on top of your phycicians. Get copies of all your tests/results. Post with any other questions you have this site has some very knowledgeable people on it. I wish you all the best
Kevin