Hello my 4yo bearded dragon has a lump on his hand, I'm concerned about it possibly being cancer. The lump is firm, but not bony. He has no noticeable adverse reaction to touching it or gently pressing on it. There is no scale discoloration around it nor does he seem bothered by it day to day, the hand is fully mobile and he uses it. Excrement and urates look normal no noticeable change in weight.