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Additionally, there were approximately 10 million mortalities due to cancer in 2020 [3] and, there is an overall trend which demonstrated that malignant mortality has increased by 28% over the past 15 years. [26] Lung cancer has the highest mortality rate in comparison to other forms of cancer, with the leading cause of development due to ...
Cancer DALYs attributable to 11 Level 2 risk factors globally in 2019. [128] Cancer prevention is defined as active measures to decrease cancer risk. [129] The vast majority of cancer cases are due to environmental risk factors. Many of these environmental factors are controllable lifestyle choices. Thus, cancer is generally preventable. [130]
Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body. [3] [4] Cancer can be difficult to diagnose because its signs and symptoms are often nonspecific, meaning they may be general phenomena that do not point directly to a specific disease process.
Oncology is a branch of medicine that deals with the study, treatment, diagnosis, and prevention of cancer.A medical professional who practices oncology is an oncologist. [1]
The Free Library has a separate homepage. It is a free reference website that offers full-text versions of classic literary works by hundreds of authors. It is also a news aggregator, offering articles from a large collection of periodicals containing over four million articles dating back to 1984. Newly published articles are added to the site ...
Cancer related to one's occupation is believed to represent between 2–20% of all cases. [17] Most cancer deaths caused by occupational risk factors occur in the developed world. [16] Job stress does not appear to be a significant factor at least in lung, colorectal, breast and prostate cancers. [18]
Carcinoma is a malignancy that develops from epithelial cells. [1] Specifically, a carcinoma is a cancer that begins in a tissue that lines the inner or outer surfaces of the body, and that arises from cells originating in the endodermal, mesodermal [2] or ectodermal germ layer during embryogenesis.
Lung cancer, also known as lung carcinoma, is a malignant tumor that begins in the lung. Lung cancer is caused by genetic damage to the DNA of cells in the airways, often caused by cigarette smoking or inhaling damaging chemicals. Damaged airway cells gain the ability to multiply unchecked, causing the growth of a tumor.