Really sorry to hear about this concern, Bullet. I just prayed for you.
If you do go without smoking, even from now on, relish all the more the other good things in your life. Many non-smokers live very full lives and obsess over myriad other good things.
I won't advise you one way or the other. Although the establishment pretends that smoking correlates to every physical ailment under the sun, I won't throw the baby out with the bathwater -- for all that I know, smoking may correlate to some ailments, and if your research indicates that it may really correlate to yours, then living is better than smoking.
When I started chemo, I gave up smoking altogether. Later, I decided that in my particular case, total abstinece wasn't necessary, but that more moderation would at least alleviate any guilt in the case of recurrence. So I've settled into maybe 3 pipes a week. With 7 kids depending on me, I probably won't (usually) smoke more than that. And for me, that's plenty to scratch the itch.
Please keep us updated on your medical proceedings!