I was diagnosed with abdominal wall endo in Nov 2015. Removal of mass in Dec 2015. I had 2 c sections prior. The last one in 2010. Removal was fine and was told it was isolated and would not return! 1 month and 4 days after surgery there is another good size lump about 2 finger lengths from prior surgery scar! Was one mass not seen or missed? I had ct scan and ultra sound prior to surgery. This is said to be rare only like 1%! Now I have had it twice? ??