CA node metastasis or not

How to know this is CA metastasis node or not?

1. Found primary CA
2. Fix node (You have to try move node in every direction to confirm it fix or not)
   
3. Node diameter > 1 cm
4. Chain node (In viral infection also have chain node, but viral infection will have prodormal sign)
   
5. Node was no tender (In general, infection node will have tenderness, anyway, chronic infection will also absence of tenderness.)

This is not the rules and the CA metastasis node haven't to have all this criteria.
It just the consideration point to determine that is it CA metastasis node or not.