What is a 'tumor'?

What is a 'tumor'?

The way cancer cells create a tumor, a tumor by definition, it's a growth. It's mass. They have formed certain properties that allow them to double in size, to duplicate themselves, to stick to each other, because obviously, if they couldn't stick to each other, they would just be free floating cells, but they've developed these techniques to hold on, to attach, not only to themselves unfortunately. They could attach to tissue, bone, muscle, blood vessels. And this is what you begin to identify as they continued to multiply in the same place holding fast and almost trying to occupy territory to take over a region. This is when you recognize you have a lump. There is a bump there, something that wasn't there before. This is what we call a tumor.