Question

What is a malignant tumour?

Options

• A non-cancerous tumour that remains stationary and never causes harm

• A cancerous tumour that grows rapidly, invades surrounding tissues and spreads to distant organs

• A tumour that grows slowly and stays confined to epithelial tissues only

• A temporary tumour that disappears without treatment

Answer 1

A malignant tumour is a cancerous tumour characterised by rapid growth, invasion of nearby tissues, and the ability to spread to distant organs through the bloodstream or lymphatic system. This spreading process is called metastasis, making malignant tumours far more dangerous than benign tumours.