Yes. I have seen it but extremely rare.
Yes. It does happen. Most common sites are liver followed by lung but brain mets have been noted in as many as 12%.
Long story and great. Deal of information. A very brief explanation-you have damage to a cell line in your colon that leads to cancerous cells, which then over grow and are non-functional cells. These cells damage and destroys surrounding tissue, and if they get into the blood stream or lymph system, and goes somewhere else (called metastasis), then those cells damage those other organs and tissues as well. Read more...