What are Metastases?

What are Metastases?

Metastases are what makes cancer so difficult to treat.
When a tumor spreads into neighbor organs it is named invasion. Then when small clumps of tumor cells travel to another site of body, and give rise to new tumors, that are named metastases. Originally it is a Greek word.

Surgeon can cut out primary tumor relatively easy (unless it invades into an important organ or lies close to big blood vessels or nerves). However dealing with hundreds of small tumors all over the body is a daunting task.

This is why it is important to catch a cancer in the early stages, before wide spreading.


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