The Lung Cancer System
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Information on Lung Cancer
The Cancer Lung System
The human lungs are cone-shaped, sponge-like organs that are a main part of
the respiratory system. The right lung has three sections that are called
lobes. It is a little larger than the left lung, which has two lobes.
When we breathe in, the lungs take in oxygen, which our cells need
to live and carry out their normal functions. When we breathe out,
the lungs get rid of carbon dioxide, which is a waste product of
the body's cells.
Lung Cancer Picture
Lung cancer now kills more men and women than any other form of cancer in the United States.
The economic loss is huge and is calculated to be over two billion dollars
Most lung cancers
begin to grow silently, without any symptoms. Patients with
lung cancer often do not develop symptoms until the cancer
is in an advanced stage. The actual time from when one cell
becomes cancerous until it is large enough to be diagnosed
or produce symptoms
may take as long as 10 to 40 years. Since the majority of
lung cancer is diagnosed at a relatively late stage, only
10% of all lung cancer patients are ultimately cured. If the
patient cannot be cured by surgery at the time the cancer
is found, there is a 50% chance that death will occur in less
than one year. Of course there are advances with medicine and new treatements, so this time may change at any point.