What is lung cancer?

Lung cancer is a growth of malignant cells in the lung.

You see, throughout your life, the dividing cells in your body again and again and reproduce. Believe it or not, every minute of your life, this is being called up ten million times. Think about it ... ten million times per minute! This is not only unbelievable, it is an example of how complex your body really is.

Well done, for the most part, takes it all in an orderly manner, as your cells go about their work, the meetingthe needs of your body. Occasionally, however, occur to a cellular mutation and do as a maturing and dying, as it was intended to augment a cell further. This is cancer ... the uncontrolled proliferation and the growth of abnormal cells in the body.

Lung cancer is the growth of malignant cells in the lung.

In most cases, the malignant cells will be located in the epithelial lining of the respiratory tract, where the oxygen from the air we breathe, from extracted. For this reason,Lung cancer is sometimes referred to as lung cancer (cancer) from the bronchi. A relatively small percentage of lung cancer (10% or less) will begin in the pleura, the thin tissue sac that surrounds the lungs. These tumors are connected as mesothelioma. The most common form of mesothelioma by asbestos. The rarest form begins in the blood vessels or other supporting tissue of the lungs.

Types of Lung Cancer

There are twoMain types - small cell lung cancer (SCLC) and non-small cell lung cancer (NSCLC).

SCLC is the less common of the two, which is good because it is also more deadly. Less than one percent of SCLC is diagnosed in non-smokers. This means that smoking is the main culprit behind this type of lung cancer. SCLC is aggressive and fast moving. It metastasizes rapidly to other organs, and is often discovered only when the cancer is already widespread throughout the body.

Non-small cellLung cancer makes up about 80% of cases diagnosed with lung cancer. Within this category there are three sub-divided ... Squamous cell carcinoma, adenocarcinoma and large cell carcinoma. Sometimes two or even all three may occur together.

Finally, there are some less common types such as bronchial carcinoid tumors (small tumors that are most commonly found in people under 40 years). These tend to be less aggressive, grow slowly, and often can be effectivelytreated.

A Deadly Cancer

Lung cancer is one of the deadliest cancers. This is mainly due to the fact that lung cancer tends to metastasize at an early stage of the disease and is often discovered only when it is disseminated. In addition, if it does metastasize, it tends to spread, yet most vulnerable organs of the body. The adrenal glands, liver, brain and bone are all early goals.

Finally, because the lungs are sosusceptible to metastatic cancer from other sources throughout the body, it is not unusual for a cancer to be found in the lungs, not cancer, but a metastatic cancer. These tumors tend to make their homes in the peripheral tissues of the lungs and not the primary tissue.

Thanks To : Swine Flu Vaccine