I know all about that kind of stuff.
Found a couple of polyps several years ago. They snagged those suckers. Next check was 3 years later. No polyps. Now I'm so old now its not a worry.
In '09 they removed my spleen and gall bladder. Didn't complete the procedure. Left a couple of very large stones in there. The stones in the bile duct really pissed off the pancreas. Thus started nearly monthly episodes of pancreatitus that ended 3 weeks ago. Danged stuff really really hurt. Nearly as bad as kidney stones.
After 6 upper GIs to get pooching out veins in the throat due to back pressure from having no spleen, and two tube jobs to get the stones out every thing is back to about normal. Oh, except for a couple of cysts that are suspicious.
The only regret I have is that the people that put you out don't make house calls.
The last "real" hunt in '07 w/BB was the last of the poor health ones. Didn't know it then but by '09 I was about a goner. 2012 will be my last act of defiance.
When I go out I'm going out in a blaze of glory.... Whooo Hoooo