Amen.
Lots of issues with being clear.
Liver cancer starts in the liver. This means, specifically, that liver CELLS became cancerous. The cells stopped behaving properly and started growing in uncontrolled fashion.
Metastasized colon cancer in the liver is COLON CELLS that became cancerous, in the colon, and travelled to the liver where they lodged, induced the body to grow blood vessels to provide them a blood/nutrient supply, and began to grow in uncontrolled fashion there.
One of the most recent methods of attacking cancer is to try to stop the body from forming those blood vessels. It is called anti angiogenesis. There is some progress on this.