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GCSE Biology · key term
Describes a non-cancerous tumour that remains contained in one area and does not invade other tissues.
Used by AQA
Specification 4.2.2.7 · Paper 1
Revise: CancerA benign tumour is a growth of abnormal cells that stays within one area, usually enclosed by a membrane. Its cells do not invade neighbouring tissues or spread to distant parts of the body, so the tumour is not cancerous.
When comparing tumours, state both location and behaviour: benign tumours remain contained and do not invade, whereas malignant tumours invade tissues and can spread through the blood.
Do not write that every tumour is cancerous. Malignant tumours are cancerous; benign tumours are not.
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