I just had a hysterectomy the dr. originally told me I had a 7cm cyst in my left ovary When the operation was over he said it was a benign adenocarinoma tumor weighing 6 oz. Isn't adenocarcinoma cancer? could it have been precancerous and was about to turn. My husband heard the same thing . I was just wondering if I did the right thing by having it out> When I heard i Had a mass my sister and cousin had recently died of ovarian cancer and I said just get rid of it before it becomes a problem I was wondering if it was adenocarcinoma if it was early cancer or not?