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Lung Cancer Rated in
Stages
Leading cause of cancer death
in this country and the world
By Jean Jeffers, Staff Writer
Lung cancer is the most common
cause of cancer death in the United
States, as well as the leading cause of
death due to cancer in the world. The
National Cancer Institute reports in
the United States, approximately one
out of every 14 men and women will
be diagnosed with lung cancer at some
point in their lives.
Lung cancer is a disease of the elderly; almost 70 percent of people diagnosed are over 65 years of age. While
the incidence of lung cancer is beginning to fall in the developed world due
to public education about smoking,
lung cancer remains among the most
common types of cancers. Cigarette
smoking is the most common cause of
lung cancer, but this disease may also
be caused by frequent contact with
asbestos fibers or radon gas.
There are three types of lung cancer:
1) Non-small cancer cell lung
cancer – the most common type, it
is comprised of squamous cell carcinoma, adenocarcinoma and large cell
carcinoma.
2) Small-cell lung cancer – this
occurs in about 10 percent to 15
percent of lung cancers, and tends to
spread rapidly.
3) Lung carcinoid tumor – this
accounts for fewer than 5 percent of
lung cancers and grows slowly and
rarely spreads.
Initially, there may be no symptoms
of the disease. Once present, symptoms include coughing, coughing up
blood, breathing difficulties such as
shortness of breath and wheezing,
loss of appetite, fatigue and recurring
infections.
In the advanced stages, the cancer
often spreads to other parts of the
body, such as the bones, liver
and brain. New symptoms
at that time may include
bone pain, swelling of
the face, arms and
neck, dizziness and
headache or weak
limbs, jaundice and
lumps in the neck or
collarbone region.
A common term
among lung cancer
treatment teams is
“staging of the lung cancer.” Web
MD says the stage of a tumor refers
to the extent to which lung cancer has
spread in the body. Staging involves
considering a tumor’s size and its
metastases in lymph nodes or to other
organs. Staging directs, in part, how a
particular tumor is treated. Staging is
also involved in estimating the prog-
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