According to the American Cancer Society, cancer is a group of diseases characterized by uncontrolled growth and spread of abnormal cells.
If the spread is not controlled, it can result in death.
Although cancer is often referred to as a single condition, it actually consists of more than 100 different diseases.
What is cancer characterized by?
Cancer refers to any one of a large number of diseases characterized by the development of abnormal cells that divide uncontrollably and have the ability to infiltrate and destroy normal body tissue. Cancer often has the ability to spread throughout your body. Cancer is the second-leading cause of death in the world.
Is cancer a group of 100 diseases?
Cancer is the general name for a group of more than 100 diseases. Although there are many kinds of cancer, all cancers start because abnormal cells grow out of control. Untreated cancers can cause serious illness and death.
What are the 5 most common types of cancer?
Most of these statistics were compiled in the American Cancer Society Facts & Figures annual report for 2013.
- 1 – Skin cancer.
- 2 – Lung cancer.
- 3 – Prostate cancer.
- 4 – Breast cancer.
- 5 – Colorectal cancer.
- 6 – Kidney (renal) cancer.
- 7 – Bladder cancer.
- 8 – Non-Hodgkin’s lymphoma.
What are cancerous tumors called?
Tumor. A mass formed when normal cells begin to change and grow uncontrollably. A tumor can be benign (noncancerous) or malignant (cancerous, meaning it can spread to other parts of the body). Also called a nodule or mass.
Do we all have cancer cells?
Cancer can start almost anywhere in the human body, which is made up of trillions of cells. Normally, human cells grow and divide to form new cells as the body needs them. When cells grow old or become damaged, they die, and new cells take their place.
What are cancer cells called?
Carcinoma, the majority of cancer cells are epithelial in origin, beginning in the membranous tissues that line the surfaces of the body. Leukaemia, originate in the tissues responsible for producing new blood cells, most commonly in the bone marrow.
What triggers cancer cells?
Cancer is a disease caused when cells divide uncontrollably and spread into surrounding tissues. Cancer is caused by changes to DNA. Most cancer-causing DNA changes occur in sections of DNA called genes. In normal cells, tumor suppressor genes prevent cancer by slowing or stopping cell growth.
What do cancer cells look like?
Cancer cells look differentUnder a microscope, cancer cells may look very different from normal cells. They often have different sizes and some may be larger than normal while others are smaller. Cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.
What cancer is curable?
Although there is no cure for cancer yet, detecting and treating the disease at an early stage can significantly improve a person’s outlook. The cancers with the highest 5-year relative survival rates include melanoma, Hodgkin lymphoma, and breast, prostate, testicular, cervical, and thyroid cancer.