When a malignant tumour spreads to sites distant from the primary tumour, the process is known as

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Metastasis refers to the spread of cancer from the original site to other parts of the body, and is a key feature of malignant tumours. Hyperplasia refers to the increase in the number of cells in a tissue, dysplasia is the abnormal development of tissue, and malignancy refers to the property of cancer cells to invade and damage surrounding tissues. However, only metastasis involves the spread of cancer to distant sites.

When a Malignant Tumour Spreads to Sites Distant from the Primary