Definition Causes Examples Diagnosis. What is Cancer? It is a disease characterized by out –...
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Transcript of Definition Causes Examples Diagnosis. What is Cancer? It is a disease characterized by out –...
What is Cancer?
It is a disease characterized by out – of-control cell growth.
Product of cells that has undergo an abnormal cell cycle.
Damaged cells that divide uncontrollably and thereby produces TUMORS
What are Tumors?
Tumor in the oral (mouth) cavity of an 87 year old woman who smoked 1 pack a day when she was younger.
Tumors are:
Clumps of cells that resulted from abnormal uncontrollable growth.
Can be benign (non cancerous), pre – malignat, or malignant whereas cancer cells are malignant (has the ability to spread, invade and destroy tissues).
What causes cancer?
Environmental – The environment where you are in.
Genetic – Passing of a mutated gene from one generation to another.
Environmental Causes of Cancer Skin Cancer – exposure to the
Ultraviolet (UV) rays from the sun.
Occurrence of moles that changes its place every month.
Environmental Causes of Cancer Skin Cancer
Development of lumps (tumors) in the mole area over time.
Environmental Causes of Cancer Tobacco Exposure
Normal LungA Lung with Emphysema
(lead to Lung Cancer)
Environmental Causes of Cancer Pollution Exposure – Mercury Poisoning
Mercury Exposure in a gold mining in Minamata, Japan. Hundreds of people died from exposure to Mercury when they drink, bathe and wash their clothes & food in the contaminated water.
Environmental Causes of Cancer Pollution Exposure – Lead Poisoning
Normal Brain Cells Brain Poisoned with Lead
Environmental Causes of Cancer Pollution Exposure – Lead Poisoning
could be due to:1. Inhaling vehicular smoke that uses Leaded gas.
2. Exposure to lead paints (banned in 1978) 3. Metal processing (usually people who work in
these areas has the highest risk) 4. Toys/Jewelries that have lead content. 5. Drinking water contaminated with Lead. 6. Eating food in cans soldered with Lead. 7. Cosmetics
Environmental Causes of Cancer Alcohol Consumption
Resulted from Cirrhosis where the liver starts to deteriorate (die) because of injury that could have resulted from scarring by constant exposure to alcohol and other form of chemicals.
Genetic Causes of Cancer
Mammogram image of a breast lump (left) and a normal breast (right).
Breast Cancer
Genetic Causes of Cancer Prostrate Cancer
Cancer Cells eating and destroying prostrate cells – 10,000 x magnification.
Treatments for Cancer
Chemotherapy Radiation Therapy Surgery Stem Cell Transplantation (Blood
Cancer, et. al) Biotherapy Bone Marrow Transplantation