How does a smoker die of “Lung cancer?, What are the” symptoms “?
How do you know they have it? How long they live for? (which is what the cough itself to death? die in his sleep? or …?)
Cancer non-small small cell lung (NSCLC) is a disease in which cells of the lung tissues grow uncontrollably and form tumors. Description There are two types of cancers Lung, primary and secondary. Primary lung cancer starts in the lung itself, and is divided into small cell lung cancer Non-small and lung cancer cells. Lung cancers are small cell form of a call from oats and oat cell cancers, are aggressive, spread rapidly, and represent 20% of lung cancers. Cancer non-small cell lung represents almost 80% of all primary lung cancers.
Lung cancer is cancer that begins in secondary school elsewhere in the body (for example, breast or colon) and spreads to the lungs. Lungs The lungs are found together with the heart in the chest cavity. The lungs are not simply hollow balloons, but have a highly organized structure composed of hollow tubes, blood vessels and elastic tissue. The hollow tubes, called bronchi, are highly branched, becoming smaller and more numerous in each branch. They end up in the tiny, blind sacs made of elastic tissue called alveoli. These bags are the source of oxygen a person breathes is reflected in blood, and where carbon dioxide leaves the blood to be exhaled. Normal healthy lungs are continually secreting mucus that not only keeps moisture in the lungs, but also protects the lungs by trapping foreign particles like dust and dirt in the air breathed. The inside of the lungs is covered with small cilia, hairlike structures called. Ciliary movement so that the mucus is dragged out of the lungs and throat. Lung cancer most cancers lung bronchial cells, and can take years to develop.
As they grow larger than preventing the lungs from functioning normally. The tumor may reduce the ability of the lungs, or blocking the movement of air through the bronchi of the lungs. As a result, receive less oxygen in the blood and patients feel short of breath. Tumors may also block the normal movement of mucus into the throat. As a result, mucus builds up in the lungs, and infection may develop behind the tumor. Once lung cancer has been developed often spreads to other parts of the body. The speed at which no cell tumors small to grow depends on the type of cells comprising the tumor.
The following three types of accounts for the vast majority of non-small cell tumors: The adenocarcinomas are the most common and often cause no symptoms. Often not found until they are advanced. Squamous cell carcinomas usually produce symptoms as they are centrally located and block the lungs. undifferentiated large cell and giant cell carcinomas tend to grow rapidly and spread quickly to other parts of the body. Worldwide, lung cancer is the most common cancer in men, and the fifth most common cancer in women.
The mortality rate worldwide for patients with lung cancer is 86%. In the United States, lung cancer is the leading cause of cancer death between men and women. The World Health Organization estimates that lung cancer mortality worldwide will increase to three million in 2025. Of the three million deaths, almost two and half million will result in non-small cell lung cancer cells.
The American Cancer Society (ACS) estimated 173,770 Americans will develop lung cancer in 2004, 93,110 men and 80,660 women. Of these, 160,440 will die of the disease. The incidence Lung cancer begins to fall in developed countries. This may be the result of campaigns against smoking. In developing countries, however, rates continue to rise, which may be a consequence of both industrialization and increasing use of snuff products.
Causes and symptoms
Causes of consumer accounts of snuff for 87% of all lung cancers. Leave the snuff can prevent most lung cancers. Smoking marijuana cigarettes is considered another factor risk for lung cancer. Second hand smoke also contributes to snuff the development of lung cancer among nonsmokers. certain materials hazardous that people may be exposed to in their jobs have been shown to cause lung cancer. These include asbestos, coal products and radioactive substances. Air pollution can also be a contributing factor.
Exposure to radon, a colorless, odorless gas that sometimes accumulates in the basement, may cause lung cancer in a small minority of patients. In addition, patients whose lungs are scarred from other lung conditions may be at risk higher lung cancer. Symptoms lung cancers tend to spread very quickly, and only 15% was detected in its early stages.
The possibilities early detection, however, can be improved by seeking medical attention immediately if any of the following symptoms appear: a cough that no chest pain disappears breathlessness recurrent lung infections such as bronchitis or pneumonia bloody or brown-colored spit or phlegm (sputum) hoarseness significant weight loss not due to dieting or vigorous exercise, fatigue and loss of appetite, unexplained fever Although these symptoms may be caused by diseases other than lung cancer, it is important to consult a doctor to rule out lung cancer.
If lung cancer spread to other organs, the patient may have other symptoms such as headaches, bone fractures, pain, bleeding, or blood clots. Physical diagnostic examination and diagnostic The first medical tests will take a detailed medical history and assess the risk factors. During a complete physical examination the doctor will examine the patient’s throat to rule out other possible causes of hoarseness or coughing, and listen to the patient’s breathing and chest sounds. If your doctor suspects lung cancer, especially if the patient has a history of smoking or occupational exposure to irritants, a chest X ray may be ordered to check for lumps in the lungs.
Techniques special imaging such as computed tomography (CT) or magnetic resonance imaging (MRI) can provide more precise information on the size, shape and location tumors. Sputum analysis Sputum analysis is a noninvasive test that involves microscopic examination of cells that are expelled from the lungs. This test can diagnose at least 30% of lung cancers, even if tumors are not visible on chest x-ray Furthermore, the test can detect cancer in its early stages early, before it spreads to other regions. The sputum test does not provide any information about the location of the tumor.
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