Cancer

• Tumour

  Abnormal mass of cells that form when a group of cells undergo uncontrolled growth and division
• 2 types of tumours

  Benign

  Malignant
• What is a benign tumour

  Tumours that are contained in one area

  They don’t invade other parts of the body and aren’t considered cancers
• Malignant tumour

  Tumour cells are cancers that invade neighbouring tissues and spread to different parts of the body via blood where they form secondary tumours
• Which types of cancer does the BRCA gene increase the risk of

  Ovarian cancer

  Breast cancer
• Ultraviolet radiation

  Increase the risk of skin cancer
• Types of cancers that smoking increase the risk of

  Lung

  Mouth

  Stomach

  Breast
• What type of division do tumour cells divide by

  Mitosis