Yes,
I was very lucky. Retroperitoneal I believe simply means back of the stomach. I don't have much advice. I had the surgery want went on living my life. I did not realize it could reoccurr perhaps ignorance is bliss. It was a pleomorphic liposarcoma tumor, I am guessing that is the same thing. I have heard them called sarcomas but I think the liposarcomas are more fatty. I am revisiting the entire experience again now and I may have handled it better back then. It took me awhile to recover. Where is your tumor and what size? Mine was 9 pounds by the time they removed it so the surgery was fairly extensive. They did not however have to take out any other organs. How aggressive was your surgery? Give your self time to heal and rest is my best advice. Wish you the best of luck.