What can cause cancer to develop and progress?
There are a number of behavioral factors that can lead to genetic mutations and, as a result, lead to the development of cancer.
- Tanning (excessive exposure to ultraviolet light)
- Diet (red, processed meats)
- Unsafe sex (leading to viral infection)
What are the steps of cancer development?
At the cellular level, the development of cancer is viewed as a multistep process involving mutation and selection for cells with progressively increasing capacity for proliferation, survival, invasion, and metastasis (Figure 15.4).
Which is not cancer?
A benign tumor is not a malignant tumor, which is cancer. It does not invade nearby tissue or spread to other parts of the body the way cancer can. In most cases, the outlook with benign tumors is very good. But benign tumors can be serious if they press on vital structures such as blood vessels or nerves.
What is the first step in cancer development?
The first step in cancer development is initiation, in which a change in a cell’s genetic material (a mutation) primes the cell to become cancerous. The change in the cell’s genetic material may occur spontaneously or be brought on by an agent that causes cancer (a carcinogen).
Is stage 1 or 2 cancer worse?
Stage 1 – Localized cancer that has spread into nearby tissues. It has not yet spread to lymph nodes or other areas. Stage 2 – Cancer has spread to a regional area or into nearby tissues or lymph nodes. Stage 3 – More advanced regional spread than Stage 2.
Which type of cancer is most common?
The most common type of cancer on the list is breast cancer, with 284,200 new cases expected in the United States in 2021. The next most common cancers are prostate cancer and lung cancer.
What are the top 10 causes of cancer?
The germline mutations are carried through generations and increase the risk of cancer.
- Cancer syndromes.
- Bacteria and parasites.