Cancer in Cats
Cancer cells are renegades that have avoided the immune system. They trick "natural killer" cells into regarding the cancer cells as "self" and not attacking and destroying them.
Having eluded the immune system, cancer cells, like parasites, embark on producing countless generations of cancer cells.
Malignant cancer cells spread to other parts of the body, and some can produce chemicals that actively suppress a cat's immune system.
The skin, blood-related organs, mouth, and bones are the most common sites for feline tumors to begin.