Year
Learning Area
Wellbeing Resources
Cancer

Library Books

Overview

What is cancer?

Cancer is a disease of the body's cells. Normally cells grow and multiply in a controlled way, however, sometimes cells become abnormal and keep growing. Abnormal cells can form a mass called a tumour.

Cancer is the term used to describe collections of these cells, growing and potentially spreading within the body. As cancerous cells can arise from almost any type of tissue cell, cancer actually refers to about 100 different diseases.

How does cancer develop and spread?

Diagram of how cancer starts.

As mutant cells (those with mistakes in their genetic blueprint) grow and divide, a mass of abnormal cells, or a tumour, is formed. In some cases, these cells will form a discrete lump, in other cases such as leukaemia, abnormal blood cells are in the body.

Cancer cells can break away from the mass (or tumour) and travel via the bloodstream or lymphatic system to different parts of the body. These cells can settle in other parts of the body to form a secondary cancer or metastasis.

Cancer can cause premature death because these secondary cancers stop parts of the body from working properly.

Diagram of how cancer spreads.

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Audiovisual

What is cancer?

Why is it so hard to cure cancer?

How do cancer cells behave differently?

How does cancer spread?

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