cancer notes. what is cancer? cancer develops when cells in the body begin to grow out of control
TRANSCRIPT
![Page 2: Cancer Notes. What is cancer? Cancer develops when cells in the body begin to grow out of control](https://reader035.vdocuments.net/reader035/viewer/2022062517/56649f1b5503460f94c30948/html5/thumbnails/2.jpg)
What is cancer?• Cancer develops when cells in the body
begin to grow out of control.
![Page 3: Cancer Notes. What is cancer? Cancer develops when cells in the body begin to grow out of control](https://reader035.vdocuments.net/reader035/viewer/2022062517/56649f1b5503460f94c30948/html5/thumbnails/3.jpg)
Cancer
• Normal body cells grow, divide, and die in an orderly fashion.
![Page 4: Cancer Notes. What is cancer? Cancer develops when cells in the body begin to grow out of control](https://reader035.vdocuments.net/reader035/viewer/2022062517/56649f1b5503460f94c30948/html5/thumbnails/4.jpg)
Cancer
• Because cancer cells continue to grow and divide, they are different from normal cells.
• Instead of dying, they outlive normal cells and continue to form new abnormal cells.
• The mass of cells is called a
. • The study of tumors is called
.
tumor
oncology
![Page 5: Cancer Notes. What is cancer? Cancer develops when cells in the body begin to grow out of control](https://reader035.vdocuments.net/reader035/viewer/2022062517/56649f1b5503460f94c30948/html5/thumbnails/5.jpg)
Cancer
• Cancer cells can travel to other parts of the body where they begin to grow and replace normal tissue.
• is when cancer cells get into the bloodstream or lymph system and spread to different parts of the body.
Metastasis
![Page 6: Cancer Notes. What is cancer? Cancer develops when cells in the body begin to grow out of control](https://reader035.vdocuments.net/reader035/viewer/2022062517/56649f1b5503460f94c30948/html5/thumbnails/6.jpg)
Cancer
• The name of a cancer is given by the location it starts.
• If a person has cancer in their lungs then it is called
• If that cancer spreads to another part of the body, it is still called lung cancer.
“lung cancer”.
![Page 7: Cancer Notes. What is cancer? Cancer develops when cells in the body begin to grow out of control](https://reader035.vdocuments.net/reader035/viewer/2022062517/56649f1b5503460f94c30948/html5/thumbnails/7.jpg)
Cancer
• Cancer cells develop because of damage to
• Usually, this damage is repaired. This is not the case with cancer cells.
• DNA regulates the cell cycle so when it is damaged, the cycle becomes
DNA
unstable.
![Page 8: Cancer Notes. What is cancer? Cancer develops when cells in the body begin to grow out of control](https://reader035.vdocuments.net/reader035/viewer/2022062517/56649f1b5503460f94c30948/html5/thumbnails/8.jpg)
Cancer
• Many times our DNA can be damaged by our environment or things we do to our bodies.
Smoking, radiation exposure, too much sun
![Page 9: Cancer Notes. What is cancer? Cancer develops when cells in the body begin to grow out of control](https://reader035.vdocuments.net/reader035/viewer/2022062517/56649f1b5503460f94c30948/html5/thumbnails/9.jpg)
Cancer
• We can also be genetically predisposed to a cancer if we inherit a certain gene from our parents
• have been genetically linked
• 5% of cancers
Breast, ovarian and colon cancer
![Page 10: Cancer Notes. What is cancer? Cancer develops when cells in the body begin to grow out of control](https://reader035.vdocuments.net/reader035/viewer/2022062517/56649f1b5503460f94c30948/html5/thumbnails/10.jpg)
Cancer
• Cancer usually forms a tumor.
• tumors are non-cancerous and they do not spread.
• tumors are cancerous and they do spread.
Benign
Malignant
![Page 11: Cancer Notes. What is cancer? Cancer develops when cells in the body begin to grow out of control](https://reader035.vdocuments.net/reader035/viewer/2022062517/56649f1b5503460f94c30948/html5/thumbnails/11.jpg)
![Page 12: Cancer Notes. What is cancer? Cancer develops when cells in the body begin to grow out of control](https://reader035.vdocuments.net/reader035/viewer/2022062517/56649f1b5503460f94c30948/html5/thumbnails/12.jpg)
Cancer
• Different types of cancer behave very differently.
• Lung cancer and breast cancer grow at different rates and respond to different treatments.
• Treatments vary from surgery, radiation, chemotherapy, immunotherapy, antiangiogenesis, hyperthermia, etc.
![Page 13: Cancer Notes. What is cancer? Cancer develops when cells in the body begin to grow out of control](https://reader035.vdocuments.net/reader035/viewer/2022062517/56649f1b5503460f94c30948/html5/thumbnails/13.jpg)
Types of Cancer
• develop in soft tissues like muscle, and in bone and cartilage
• develop in the blood cells
• develop in the lymphatic system
• develop in the bodies organs
• There are a few others that don’t fit any of these categories
Sarcomas
Leukemias
Lymphomas
Carcinomas
![Page 14: Cancer Notes. What is cancer? Cancer develops when cells in the body begin to grow out of control](https://reader035.vdocuments.net/reader035/viewer/2022062517/56649f1b5503460f94c30948/html5/thumbnails/14.jpg)
Statistics
• Cancer is the 2nd leading cause of death in the United States (
is #1).
• of all men and of all women in the U.S. will develop cancer in their lifetime.
heart disease
Half
one third
![Page 15: Cancer Notes. What is cancer? Cancer develops when cells in the body begin to grow out of control](https://reader035.vdocuments.net/reader035/viewer/2022062517/56649f1b5503460f94c30948/html5/thumbnails/15.jpg)
Statistics
• About of all cancers are diagnosed in persons 55 and older
• About new cases of cancer will be diagnosed this year (60,000 in Illinois).
• Add to that number, 1 million cases of skin cancer.
• About people will die each day of cancer in this country ( each yr.)
77%
1.5 million
1,500566,000