Doh :).
It was a mucinous adenocarcinoma. A rather rare variety. But to take out a tumor barely 1/2” long, I had 3 incisions, lost an entire lobe where it was found, and six months later, I still have diaphragm and rib pain when I try to breath deeper in my lungs. I am short of breath in most situations - bending over, walking a mild incline, lifting virtually anything, and still have residual fatigue. So I believe with the benefit of hindsight that other options would likely have had fewer long term side effects.