Hi Jessica, I am not sure if I can help, but I seem to remember being under a scanner for a while as they kept trying to track where the tracer was going. I thought it took about an hour, but I ended up with 2 big crosses and one with a circle around it. I went in to theatre the next day ( I think), and then they injected the blue dye so that they could visually see where the lymph tracked to. It was only after these nodes were analysed in pathology that they could tell me if they were affected. They do a frozen section analysis at first, but if it is clear they still do further testing on it to make sure. This extra testing takes another week. If the initial frozen section is clear, they don't normally take the nodes then. Should the results pick up cancer with the more thorough testing, you then may need surgery to remove all nodes. This was the case 3 years ago, and it might have changed since then.
Are you in the Mount hospital in Perth?
Good luck with everything. Love Chris xx