What Is Cancer?

A Comprehensive Guide to Understanding Cancer

A) The Definition of Cancer

Cancer is a group of diseases characterized by the uncontrolled growth and spread of abnormal cells. If the spread is not controlled, it can result in death. Cancer can start almost anywhere in the human body, which is made up of trillions of cells.

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B) Differences between Cancer Cells and Normal Cells

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C) How Does Cancer Develop?

Cancer develops through a multistep process that involves:

  1. Initiation: Genetic mutations occur in the DNA of a cell.
  2. Promotion: Mutated cells are stimulated to grow and divide.
  3. Progression: Cancer cells acquire additional mutations and become more aggressive and invasive.
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D) Types of Genes that Cause Cancer

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E) When Cancer Spreads

Metastasis is the process by which cancer cells spread from the place where they first formed to other parts of the body. Cancer cells break away from the original tumor, travel through the blood or lymphatic system, and form new tumors in other organs or tissues.

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F) Tissue Changes that Are Not Cancer

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G) Types of Cancer

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Disclaimer

The information provided on this website is for general informational purposes only and is not intended as medical advice. The accuracy of the information presented here is not guaranteed and it should not be relied upon as a substitute for professional medical advice, diagnosis, or treatment. Always consult with a qualified healthcare provider regarding any questions you may have about your medical condition or treatment options.