Cancer

• What is a tumour? 


  An abnormal mass of cells that forms when a group of cells undergo uncontrolled growth and division
• What are the 2 types of tumours?


  benign & malignant
• What is a benign tumour?


  • Growths of abnormal cells that are contained in one area - usually within a membrane
  • Do not invade other parts of the body - not considered cancers
• What is malignant tumour?


  • cancers
  • invade neighbouring tissues
  • spread to different parts of the body - via blood, where they for secondary tumours
• What is Cancer?


  The result of changes in cells that lead to uncontrolled growth & division
• What have scientists identified for various types of cancer?

  Lifestyle risk factors - there are also genetic risk factors for some cancers