Final answer:
Follicular thyroid cancer can spread through local invasion, lymphatic spread, or bloodstream spread.
Step-by-step explanation:
The spread of follicular thyroid cancer can occur through three different ways:
- Local spread: The cancer cells directly invade nearby tissues.
- Lymphatic spread: Cancer cells can spread to regional lymph nodes through lymph vessels that pass by the primary tumor.
- Bloodstream spread: Cancer cells can enter the bloodstream and spread to other organs or distant sites in the body.
These modes of spread are how cancer cells can move from the original site to other tissues and establish secondary tumors.