Multiple choice

Metastasis is the process of:

  1. Excessive cell proliferation

  2. Transformation of a benign tumour into a malignant tumour

  3. Movement of cancerous cells from one site to another site in the body

  4. Transformation of a normal cell into a tumourous cell
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C Correct answer
Explanation

Metastasis refers to the spread of cancer cells from the primary tumor site to distant organs or tissues through the bloodstream or lymphatic system. This process is what distinguishes malignant cancers from benign tumors and is a major factor in cancer staging and treatment decisions.

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