Cancer Flashcards
What is tumours ?
Uncontrolled growth and division is a result of changes that occur to the cells and result in formation of a tumour. Not all tumours are cancerous .
Different types of tumours
Benign : Where tumours grow until there’s no more room. The tumour stays in one place rather than invading more than one tissue in the body. This type isn’t normally dangerous or cancerous
Malignant : Where tumours grow and invade neighbouring healthy tissues . Cells can break off and spread to other parts of the body by travelling in the blood stream. Malignant tumours are cancerous and can be fatal = they’re cancers
Anyone can develop cancers
Does having risk factors doesn’t mean you’ll Definity get cancer ?
Why has Cancer survival rates increased ??
Having risk factors doesn’t mean you’ll Definity get cancer. It just means you’re at increased risk of developing cancer. Cancer survival rates have increased due to medical advances such as improved treatment, being able to diagnose cancer earlier and increased screening for disease.
Lifestyle factor linked to lung cancer but research shows its linked to other types of cancer too, including ..
Lifestyle factor = smoking
including .. mouth, bowel, stomach and cervical cancer
Lifestyle factor linked to many different cancers and its the ——– ———– ——- cause of cancer after smoking
obesity = linked to many different cancers like bowel, liver and kidney cancer
second biggest preventable
People who are live in sunny climates, spend a lot of time outside or frequently use sun beds are at higher risk of developing .. and why ?
skin cancer
People who are often exposed to UV radiation from the sun have increase chance of developing skin cancer.
Viral infection - infection w some viruses has been shown to increase the chances of developing certain types of cancers.
For example:
The likelihood of becoming infected with these viruses depend ..
Hepatitis B and C virus increase risk of developing liver cancer. The likelihood of becoming infected with these viruses depend on lifestyles- e.g. can be spread between people through unprotected sex or sharing needles
Risk factors and genetics
1) sometimes you can inherit faulty genes that can make you more susceptible to cancer
2) For example Mutation in BRCA genes linked to increased likelihood of developing breast and ovarian cancer