I've had 3 LINAC radiation treatments. Two 6 months apart. Then had to wait 2 years only to find out that a spot had been missed. It had grown 2 new feeders. It was rather large. Started out at 5 cm. They had to split the treatments up to try and get it all. So I had another treatment in November 2015 to hopefully finish it off. Now another 2 years of waiting. Found out about it October of 2012. It will be November 2017 before I can see if it gone when they do another angiogram.