In my world, cancer is simply a cell, or group of cells, which lives inside the human body, that the human body treats as part of itself. But these cells are mo

In my world, cancer is simply a cell, or group of cells, which lives inside the human body, that the human body treats as part of itself. But these cells are more interested in their own survival than the survival of the body. It's when a group of cells "dissent", so to speak, and start prioritizing themselves over the rest of the cells in the body.