A member asked:

Do different types of cancers start in different ways or are they all basically the same thing in different parts of the body?

A doctor has provided 1 answer

All different: We are discovering the many and varied pathways and combinations of mutations that give rise to the huge array of different cancers. All result from natural selection for harmful mutations and ultimately all untreated cancers will kill; beyond this, the hugely different pathways account for the tremendously variable behavior.

Answered 7/22/2012

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