I must admit first that I don't know a specific answer to this and I'll bet Shawn or someone else might be able to give more specifics.
But for what it's worth, I think just do the entire set or whatever exercises you are doing to do that day or in that set, and visualize the tumors turning to smoke, or butterflies or whatever you want and will work best for you (in order that they/it) and moving out of your body back to the ends of the Universe where it is needed. And you don't anymore.
Just as in the Breathing of the Universe.
Also, do this kind of message/signal/information during Small Universe and Self-Concentration: turn the tumors into something else that can then be easily moved out of the body.
Not to sound like a broken record, but this is the most important part of SFQ, IMHO. The movements are important, but this aspect of qigong is even more important. The former helps conduct and open up to the latter.
