A person has cancer.Metastasis occurs when:

Question

Quizplus · Accepted Answer

Metastasis occurs when cancer cells break off of the primary tumor and travel to other parts of the body, where they can form secondary tumors. This is one of the ways in which cancer spreads and becomes more difficult to treat. Cell growth and division being out of control is a characteristic of cancer, but it is not specific to metastasis. Exposure to radiation can potentially cause cancer, but it does not necessarily lead to metastasis. Cancer being treated and controlled does not involve metastasis.

A Person Has Cancer.Metastasis Occurs When