MESOTHELIOMA,
Asbestos and Cancer - What
You Should Know
If you or a loved one has
been diagnosed with
mesothelioma or another
asbestos related cancer, you
may want to seek legal
advice. Typical legal
settelements can reach five
million dollars.
Mesothelioma is a rare
form of cancer in which
malignant (cancerous) cells
are found in the
mesothelium, a protective
sac that covers most of the
body's internal organs. Most
people who develop
mesothelioma have worked on
jobs where they inhaled
asbestos particles.
What is the mesothelium?
The mesothelium is a
membrane that covers and
protects most of the
internal organs of the body.
It is composed of two layers
of cells: One layer
immediately surrounds the
organ; the other forms a sac
around it. The mesothelium
produces a lubricating fluid
that is released between
these layers, allowing
moving organs (such as the
beating heart and the
expanding and contracting
lungs) to glide easily
against adjacent structures.
The mesothelium has
different names, depending
on its location in the body.
The peritoneum is the
mesothelial tissue that
covers most of the organs in
the abdominal cavity. The
pleura is the membrane that
surrounds the lungs and
lines the wall of the chest
cavity. The pericardium
covers and protects the
heart. The mesothelial
tissue surrounding the male
internal reproductive organs
is called the tunica
vaginalis testis. The tunica
serosa uteri covers the
internal reproductive organs
in women.
What is mesothelioma?
Mesothelioma (cancer of
the mesothelium) is a
disease in which cells of
the mesothelium become
abnormal and divide without
control or order. They can
invade and damage nearby
tissues and organs. Cancer
cells can also metastasize
(spread) from their original
site to other parts of the
body. Most cases of
mesothelioma begin in the
pleura or peritoneum.
How common is
mesothelioma?
Although reported
incidence rates have
increased in the past 20
years, mesothelioma is still
a relatively rare cancer.
About 2,000 new cases of
mesothelioma are diagnosed
in the United States each
year. Mesothelioma occurs
more often in men than in
women and risk increases
with age, but this disease
can appear in either men or
women at any age. What are
the risk factors for
mesothelioma?
Working with asbestos is
the major risk factor for
mesothelioma. A history of
asbestos exposure at work is
reported in about 70 percent
to 80 percent of all cases.
However, mesothelioma has
been reported in some
individuals without any
known exposure to asbestos.
Asbestos is the name of a
group of minerals that occur
naturally as masses of
strong, flexible fibers that
can be separated into thin
threads and woven. Asbestos
has been widely used in many
industrial products,
including cement, brake
linings, roof shingles,
flooring products, textiles,
and insulation. If tiny
asbestos particles float in
the air, especially during
the manufacturing process,
they may be inhaled or
swallowed, and can cause
serious health problems. In
addition to mesothelioma,
exposure to asbestos
increases the risk of lung
cancer, asbestosis (a
noncancerous, chronic lung
ailment), and other cancers,
such as those of the larynx
and kidney.
Smoking does not appear
to increase the risk of
mesothelioma. However, the
combination of smoking and
asbestos exposure
significantly increases a
person's risk of developing
cancer of the air
passageways in the lung.