Tumour -

: These are cancerous. They grow rapidly, can invade and destroy nearby healthy tissue, and have the ability to spread (metastasize) to distant organs through the blood or lymphatic system. Key Characteristics and Diagnosis

A (also spelled "tumor") is an abnormal mass of tissue that develops when cells grow and divide more than they should or fail to die when they should. While the word is often associated with cancer, tumours are broadly categorized into two types: tumour

: Modern research focuses on the "tumour microenvironment"—the complex ecosystem of blood vessels and immune cells surrounding the mass that can either help it grow or help the body fight it. Treatment Overview : These are cancerous

: These are non-cancerous growths. They generally grow slowly, do not spread to other parts of the body, and are typically not life-threatening unless they press against vital organs like the brain. While the word is often associated with cancer,