Lung cancer is one of the most common cancers in the world, its deadly claws stretched over all continents in the world. Lung cancer is now the most prevalent form of cancer affecting Americans with an estimated 222,500 new cases every year, according to the American Cancer Society in 2010. A few symptoms of Lung cancer are: stubborn cough that will not quit, sometimes accompanied by a hoarse throat, pain in the chest and respiratory infections. As the cancer worsens and spreads the patient may experience: severe coughing, feelings of weakness and fatigue, and odd lumps appearing on the body.Although lung cancer is difficult to treat and cure, it is for the most part preventable. Lifestyle choices can be made which can almost eliminate your risk for getting the disease. Your decision to stop smoking and to eat a healthy diet featuring plenty of fresh fruits and vegetables can greatly decrease your risk.
Lung cancer is the uncontrolled growth of abnormal cells in one or both lungs. When a cell divides once, there should be twin cells with the same DNA. Unfortunately, sometimes the DNA in one cell mutates and continues to grow, at a much faster rate than normal cells. It can be caused by environmental factors (smoking, asbestos, etc.) or can be caused simply from the normal aging process.
A) Different forms and stage 2-
Non-small cell lung carcinoma
Small cell lung carcinoma
Unspecified lung cancer
stage 2 of lung cancer is life expectancy
B) How it is stage 2 categorized
Stage 2 lung cancer life expectancy can vary considerably among different people. Some of these variables include:
Your particular lung cancer type and location – Stage 2 lung cancer encompasses several lung cancer types, and includes cancers that are small but have spread to nearby lymph nodes, or larger but have not spread to any lymph nodes
Your age – Younger people tend to live longer than older people with lung cancer
Your sex – The life expectancy for woman with lung cancer is higher at each stage of lung cancer
Your general health at the time of diagnosis – Being healthy overall at the time of diagnosis is associated with a longer life expectancy, and a greater ability to withstand treatments that may extend survival
How you respond to treatment .
Complications of lung cancer – Complications such as blood clots can lower stage 2 lung cancer life expectancy
Smoking - Continued smoking after a diagnosis of stage 2 lung cancer appears to lower survival
III. Different causes of lung cancer
smoking is the most important cause of lung cancer. Cigarette smoke contains more than 4,000 chemicals, many of which have been identified as causing cancer.
A person who smokes more than one pack of cigarettes per day has a 20-25 times greater risk of developing lung cancer than someone who has never smoked.
Once a person quits smoking, his or her risk for lung cancer gradually decreases. About 15 years after quitting, the risk for lung cancer decreases to the level of someone who never smoked.
Cigar and pipe smoking increases the risk of lung cancer but not as much as smoking cigarettes.
About 90% of lung cancers arise due to tobacco use. The risk of developing lung cancer is related to the following factors
The number of cigarettes smoked
The age at which a person started smoking
How long a person has smoked (or had smoked before quitting)
Other causes of lung cancer, including causes of lung cancer in nonsmokers, include the following:
Passive smoking, or
secondhand smoke, presents another risk for lung cancer. An estimated 3,000 lung cancer deaths occur each year in the U.S. that are attributable to passive smoking.
Air pollution from motor vehicles, factories, and other sources probably increase the risk for lung cancer, and many experts believe that...