Abdominal cancer? Never heard of it.
Whatever it is, it sounds like a contained mass. Has he been going through chemo?? We don’t know...
“Abdominal cancer? Never heard of it.”
Interpret this as the abdominal region. There are least five organs there, so take yer pick... Liver, gall bladder, stomach, pancreas, large and small intestines.
You can exclude kidneys, lungs, heart. FWIW of course. I am a believer. That Pooty will disappear for a while to go under the Doc’s knife and scalpels.