In the Rockford Diocese our former Bishop Thomas G. Doran had some of one of his lungs removed a couple years back.
Our deacon has had part of a lung removed as well. Our bodies can adapt to that just as they do for other surgeries - like removing the gallbladder. Since pope Francis was a you g man at the time of his operation, I am sure he is well adjusted to it by now.
That’s what many of those in the medical profession seem to agree on. The body compensates for the lost organ by strengthening other organs.
I guess I’m glad? :o