You are so correct about the spikes in estrogen being attributed to the growth in a Hemangiomas. I had surgery on 2/5/2010 for a Cavernous Liver Hemangioma that was accidentally found. The benign tumor was about 4 years old, 12.7 centimeter in width, when I was told that I must have a liver resection. I was out of my mine prior to this event. However, the surgeon did a marvelous job saving my life. My Gallbladder was removed, Portal Vein and the entire right lobe of my liver. I feel great! The recovery time was about 1 yr. Thank God for the technician who ask if he could scan by body. I never had any paid nor did I have any swelling within my stomach.