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cancer. Lung cancer is an uncontrolled, extremely deadly division of
cells in the lung” (World Book, “Lung Cancer”). The two ...
Lung Cancer. “Lung cancer is an uncontrolled, extremely deadly division
of cells in the lung” (World Book, “Lung Cancer”). ...
lung cancer. Lung cancer is the leading cancer killer in both men and women.
There ... cancer. Non-small cell lung cancer is much more common. ...
cancer. (a) Definition The name cancer actually refers to numerous distinct diseases
characterized by abnormal cell growth and differentiation. ...
Breast Cancer. Breast Cancer Breast cancer is one health condition that has been
found in my family. ... This type of malignant growth occurs in breast cancer. ...
Submitted by bryanhenson on May 28, 2007
Category: Science
Words: 705 | Pages: 3
Views: 252
Popularity Rank: 39,804
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(a) Definition
The name cancer actually refers to numerous distinct diseases characterized by abnormal cell growth and differentiation. Cancer evolves from irrepressible growth of abnormal cells that have mutated from normal tissues. Cancer is the result of a multi-step process called carcinogenesis, which occurs over a long period of time. The state of the cancer is highly dependent on the cell type and organ from which it is derived.
(b) Risk Factors and Incidence
Frequently doctors cannot explain why one person develops cancer and another foes not. Much research shows that certain risk factors increase the chance that a person will develop cancer. The most common factors for becoming prone for cancer are growing older, tobacco, sunlight, certain chemicals, family history, alcohol, and a poor diet. According to Healthline.com there are more than 8 million new cases and 5 million deaths from cancer per year. The incidence of cancer is nearly 100,000 new cases each year. Except in rare cases, cancer incidence, prevalence, and mortality rates are higher in industrialized countries such as the U.S. and Europe; compared to developing countries like China and African nations. Incidence rates for certain cancers can be considerably affected by the use of screening procedures to identify asymptomatic diseases.
(c) Symptoms
Cancer is groups of diseases that can cause almost any type of sign or symptom. The signs and symptoms can vary on the size of the cancer, where the cancer is, and how much it affects the surrounding organs and structures. If a cancer spreads, then symptoms can appear in different parts of the body. When a cancer grows, it begins to push on nearby organs, blood vessels, or nerves. The pressure it creates can determine some of the signs and symptoms of cancer. If the cancer is in a critical area, such as certain parts of the brain, even the smallest tumor can produce immense symptoms. A...
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