Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.



Published on

A powerpoint on cancer

Published in: Education, Health & Medicine
  • Be the first to comment

  • Be the first to like this


  1. 1. <ul><li>What is Cancer? </li></ul><ul><li>By Liz Cowan (click here to enter) </li></ul>
  2. 2. <ul><li>To start off: </li></ul><ul><li>There are two different types of growths that can be cancerous. Click here to learn about cysts , and click here to learn about tumors. </li></ul><ul><li>Click here to see my resources </li></ul>
  3. 3. <ul><li> </li></ul><ul><li>Starr/McMillan-Human Biology-4 th Edition-Chapter 22 </li></ul><ul><li>Pictures Courtesy of Google Image Search </li></ul><ul><li> </li></ul><ul><li>Click here to go back </li></ul>
  4. 4. <ul><li>Most cysts are benign, but sometimes they can be cancerous. </li></ul><ul><li>A cyst is a closed sac like structure that is not a normal part of the tissue were it is found. </li></ul><ul><li>They also usually contain a gaseous, liquid, or semi-solid substance. </li></ul><ul><li>They can vary in size, some are very small, others can displace organs! </li></ul><ul><li>Click here to continue> </li></ul>
  5. 5. <ul><li>Some causes of cysts are: </li></ul><ul><li>-Wear and tear, or simple obstructions to the flow of bodily fluids </li></ul><ul><li>-Infections </li></ul><ul><li>-Tumors </li></ul><ul><li>-Chronic Inflammatory Conditions </li></ul><ul><li>-Genetic Conditions </li></ul><ul><li>-Defects in the developing organs of an embryo </li></ul><ul><li>Click here to continue> </li></ul>
  6. 6. <ul><li>Cysts on thyroid (I’ve had these) </li></ul><ul><li>Ovarian Cysts </li></ul><ul><li>Epidermal cysts on the skin </li></ul><ul><li>Plus, many more because they can occur anywhere on the body! </li></ul><ul><li>Cysts are also further classified as simple and complex </li></ul><ul><li>Click here to cont. </li></ul>
  7. 7. <ul><li>Have very weak cell to cell adhesion </li></ul><ul><li>They can form extensions which allow them to move around, which promotes metastasis </li></ul><ul><li>Metastasis is when cells break away from the parent tumor and invade other tissues </li></ul><ul><li>The ability to metastasize makes cancers malignant </li></ul>^Malignant Brain Tumor with extensions Click Here to go back
  8. 8. -This one appears to be mostly fluid filled. -It would be considered simple. Click here to go back to the main menu
  9. 9. <ul><li>A simple cyst usually just has a liquid or gas filling </li></ul><ul><li>A complex cyst usually contains a solid </li></ul><ul><li>Click here to see a picture of a simple cyst. </li></ul>
  10. 10. <ul><li>There are two types of tumors </li></ul><ul><ul><li>Malignant </li></ul></ul><ul><ul><li>Benign </li></ul></ul><ul><ul><li>Benign tumors are usually harmless, malignant tumors however, are not. Click on the types of tumors to learn more. </li></ul></ul><ul><ul><li>Click here to learn about the different types of cancer. </li></ul></ul><ul><ul><li>Click to learn about causes and treatment . </li></ul></ul><ul><ul><li>Click here to go back </li></ul></ul>
  11. 11. <ul><li>There are genetic factors, like say if someone else in your family had cancer </li></ul><ul><li>Click to learn about genetic triggers </li></ul><ul><li>There are also environmental factors </li></ul><ul><li>Click to learn about environmental factors </li></ul><ul><li>Click here to learn the warning signs </li></ul>
  12. 12. <ul><li>Change in bowel or bladder habits </li></ul><ul><li>A sore that does not heal </li></ul><ul><li>Unusual bleeding </li></ul><ul><li>Thickening or lump </li></ul><ul><li>Indigestion, difficulty swallowing </li></ul><ul><li>Obvious change in wart or mole </li></ul><ul><li>Nagging cough or hoarseness </li></ul><ul><li>Click here to go back </li></ul>
  13. 13. <ul><li>Cells are often enclosed by a capsule of connective tissue </li></ul><ul><li>They are highly organized </li></ul><ul><li>They don’t invade surrounding tissue </li></ul><ul><li>They grow very slowly </li></ul>^ Benign Brain Tumor Click here to go back
  14. 14. <ul><li>Contracting Viruses that lead to carcinogenesis (more about this on the genetic page) </li></ul><ul><li>Radiation or Sun Damage </li></ul><ul><li>Chemicals like Pesticides, Industrial Chemicals, Hydrocarbons in smoke, Plant and Fungal Carcinogens </li></ul><ul><li>Click here to go back </li></ul>
  15. 15. <ul><li>Carcinogenesis-the transformation of a normal cell into a cancer cell </li></ul><ul><li>How this happens: </li></ul><ul><li>A multi-step process usually involving outside factors, causing mutations to the genes </li></ul>Click here to go back
  16. 16. <ul><li>Sarcomas- cancers of connective tissue and bone </li></ul><ul><li>Carcinoma- arise from epithelial tissue </li></ul><ul><li>Breast Cancer- about 1 in 9 women will have it </li></ul><ul><li>Cancers in the endocrine system like ovarian </li></ul><ul><li>Oral and Lung Cancers-Lung cancer kills more people than any other type of cancer </li></ul><ul><li>Digestive system cancers like Pancreatic </li></ul><ul><li>Skin Cancers </li></ul><ul><li>Click here to learn more about testing </li></ul><ul><li>Click here to go back </li></ul>
  17. 17. <ul><li>Blood tests for tumor markers </li></ul><ul><li>Medical imaging like ultrasounds, MRI </li></ul><ul><li>Biopsy-Having the tissue removed and examined </li></ul><ul><li>DNA probe- Locate gene mutations associated with cancer </li></ul><ul><li>Click here to go back </li></ul>
  18. 18. <ul><li>Removal by surgery </li></ul><ul><li>Chemotherapy </li></ul><ul><li>Monoclonal antibodies-magic bullets to deliver lethal doses of anti-cancer drugs </li></ul><ul><li>Immunotherapy-giving substances that trigger a strong immune response against cancer cells </li></ul><ul><li>Click here to watch a video about cancer fighting food! </li></ul>
  19. 19. <ul><li>Click here! </li></ul><ul><li>Next> </li></ul>
  20. 20. <ul><li>Hopefully, you are armed with all you need to know </li></ul><ul><li>The best way to prevent is to avoid environmental factors, and if you have symptoms, get checked over! </li></ul><ul><li>Also, you may not have to be as extreme as in the video, but eat some colorful foods with anti-oxidants! </li></ul><ul><li>Go back to first slide </li></ul>