1 / 33

CANCER

CANCER. Zoe Chan Esther Chung Ivy Law. WHAT IS CANCER. a group of many different diseases that generally all affect cells. cells keep dividing, and form too much tissue. Excess tissue can form a mass called a tumor , and this mass can be either benign or malignant tumor.

ryder-larson
Download Presentation

CANCER

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. CANCER Zoe Chan Esther Chung Ivy Law

  2. WHAT IS CANCER a group of many different diseases that generally all affect cells cells keep dividing, and form too much tissue. Excess tissue can form a mass called a tumor, and this mass can be either benign or malignant tumor. The spread of cancer is called metastasis

  3. 正常細胞 癌細胞

  4. Benign tumor ~They are not cancer ~They can be removed. ~The cells do not invade nearby tissue or spread to other parts of the body.

  5. Malignant tumor ~~The cancer cells divide out of control. ~~They can invade and destroy nearby healthy tissue or organ. ~~They are cancer. ~~Cancer cells can break away from the tumor enter the bloodstream and lymphatic system, , then form new tumors in other organs. ~~This is how cancer spreads from the original or primary tumor to form new tumors in other parts of the body.

  6. What is carcinogen? ~They are a substance that causes cancer. ~There are many substances contain carcinogen such food and drug.

  7. Type of carcinogen ﹟Diet ﹟Ionizing radiation ﹟Chemicals ﹟Radiation ﹟Other type of carcinogen such as tobacco.

  8. Chemicals 2~Artificial colorings 1~Polycyclic hydrocarbon 3~Nitrites 4~ Hydrogen peroxide

  9. Diet 2~Heavy drinks of alcohol 1~A high-fat diet

  10. Ionizing radiation and radiation 2~Radiation＊X-ray ＊gamma ray ＊ultra-violet 1~Ionizing radiation

  11. Other types of carcinogen ★tobacca ★Viruses

  12. DIFFERENT TYPE OF CANCER 1.Lung cancer 2.Breast cancer 3.Oral cancer 4.Skin cancer 5.Nasopharyngeal cancer

  13. Lung cancer 1~ non-small cell lung cancer ※ It is more common ※generally grows and spreads more slowly 2~small cell lung cancer ※It sometimes called oat cell cancer ※It is less common ※It grows more quickly ※more likely to spread to other organs

  14. Causes of lung cancer §Cigarettes §Cigars and pipes §Environmental Tobacco Smoke §Pollution

  15. BREAST CANCER Ductal carcinoma,Lobular carcinoma When breast cancer spread outside cancer cell often found in lypmh node under arm cancer cell have spread to other parts of body (e.g. bone, liver) via the lymphatic system or the bloodstream When breast cancer spreads, it is called metastatic breast cancer

  16. 以下圖片 只準十八歲以上 人士觀看

  17. ORAL CANCER Almost all oral cancer are squamous carcinomas Spreads through the lymphatic system, carried along by lymph to other parts of the body Causes: • tobacco • alcohol

  18. 以下圖片 會引起觀眾 情緒不安

  19. Skin Cancer 2 common kinds Basal cell carcinoma Squamous cell carcinoma

  20. Skin cancers need to be detected early and treated They can invade and destroy nearby tissue

  21. Cause Ultraviolet (UV) radiation from the sun Artificial sources of UV radiation, such as sunlamps and tanning booths Protection of the skin from the sun should start at childhood to prevent skin cancer later in life.

  22. Nasopharyngeal Cancer (NPC) A cancer which develops in the nasopharynx (area in the back of the nose and upper throat )

  23. Malignant tumor • (NPC)most common type • three subtypes of NPC - • keratinizing squamous cell carcinoma • non-keratinizing squamous cell carcinoma • undifferentiated carcinoma

  24. What causes NPC? Not known Associated with certain dietary habits e.g.Eating a diet high in salt-cured fish and meat

  25. 香港女性十大常見癌症

  26. How is Cancer Treated? Four major types : Surgery Radiation Chemotherapy Biologic therapies Also hormone therapies such as tamoxifen and transplant options such as those done with bone marrow.

  27. Prevention of cancer Good health 1.Include fruit in your diet 2.Limit alcohol 3.Maintain a healthy body weight

  28. Include fruit in your diet Diets high in vegetables and fruits decrease the risk of many other cancers. Good for overall health, they are low in energy and a good source of fibre, vitamins and minerals. In most cases, better eat the skin of fruit which is full of vitamins and fibre.

  29. Limit alcohol High alcohol consumption increases the risk of developing bowel cancer. It linked to cancers of the mouth, pharynx, larynx, oesophagus, liver and breast. Alcohol is high in energy (kJ) so drinking too much can also make it harder to manage your body weight.

  30. Maintain a healthy body weight Find time for regular physical activity;eat more vegetables, fruit and less fat ; reduce your alcohol intake Reduces the risk of developing cancer and many other diseases Doing regular exercise can also helps people to: Feel better Be more relaxed Sleep better

More Related