HUMAN NUTRITION

Detailed explanation-1: -Listen to pronunciation. (TOO-mer) An abnormal mass of tissue that forms when cells grow and divide more than they should or do not die when they should. Tumors may be benign (not cancer) or malignant (cancer).

Detailed explanation-2: -Tumours are groups of abnormal cells that form lumps or growths. They can start in any one of the trillions of cells in our bodies. Tumours grow and behave differently, depending on whether they are cancerous (malignant), non-cancerous (benign) or precancerous.

Detailed explanation-3: -Malignant tumors are cancerous. They develop when cells grow uncontrollably. If the cells continue to grow and spread, the disease can become life threatening. Malignant tumors can grow quickly and spread to other parts of the body in a process called metastasis.

Detailed explanation-4: -These cells may form tumors, which are lumps of tissue. Tumors can be cancerous or not cancerous (benign). Cancerous tumors spread into, or invade, nearby tissues and can travel to distant places in the body to form new tumors (a process called metastasis). Cancerous tumors may also be called malignant tumors.

Detailed explanation-5: -Cells become abnormal if their DNA – which carries the instructions they need – becomes damaged. Then the cells that come from them will be different from healthy cells. They look different, and they may also have different properties.