Peritoneal mesothelioma affects the abdominal lining (peritoneum)
which is why it is also called abdominal mesothelioma. This membrane covers and
supports the organs of the abdomen.
The lining of abdominal cavity (peritoneum) is made up of two parts; the visceral layer
that covers the internal organs and makes up the most of the outer layer of the
intestinal tract and the other one is parietal peritoneum which covers the abdominal cavity.
Cells in these linings produce a fluid which
let organs to move against each other easily. Like intestines is moving the
food throughout the body. The cells of mesothelium are responsible to produce
fluid. But when the cancer develops, it causes them to overproduce that create
a buildup of excess fluid in the abdominal cavity.
Peritoneal mesothelioma is a very rare type
of mesothelioma cancer. In US only 100 – 500 cases are diagnosed each year that
makes up only less than thirty percent of all mesothelioma cases.
In most of the cases the pleural mesothelioma usually spreads to the peritoneal cavity, that’s why it is really essential
to know that if the primary cancer is pleural or not.
Signs and Symptoms
Am I suffering from peritoneal mesothelioma?
This question must be arising in your mind, if this is the case go
seek guidance with your doctor right away because diagnosis at early stage is
very beneficial in this type of mesothelioma like every cancer. After the first
exposure of asbestos it may take 20-30 years the symptoms to appear. The symptoms
of peritoneal mesothelioma are so vague that it can be misunderstood by less serious
medical issues. Because of this diagnosis of peritoneal mesothelioma becomes
harder. So the best approach is if you have been ever exposed to asbestos then
you should have regular check ups with your physician.
I am now discussing some very common symptoms:
Swelling or pain in abdomen
The
pain in abdomen is due to lots of solid tumor and while swelling is because of
fluid retention.
Ascites
Abnormal collection of
fluid in the abdomen is ascites. In cancer only 10% of ascites cases are being
recorded out which peritoneal mesothelioma makes up a very small percentage. Ascites
can cause swelling in abdomen, weight gain, an uncomfortable feeling, swelling
of ankles and feet, indigestion and nausea.
Anemia
In anemia red blood
cells are reduced below the normal range. Because of this the heart and other
organs have to work harder to get the oxygen where it is needed.
Weight Loss
Regardless of the
collection of fluid in abdomen, it increases the size of the waist but the
appetite of the patient perhaps affected that cause weight loss.
Obstruction in Bowel
An
obstruction in large or small intestine is quite uncommon, it usually occurs at
later stages of peritoneal mesothelioma.
Fever
It can be caused because
of the infection, obstruction in bowel or tumor can also cause fever.
Symptoms of peritoneal mesothelioma are not unique so the
observation is more required as compared to diagnosis. Most of the symptoms are related to abdominal
mesothelioma which seems to be less serious medical conditions.
Diagnosis
How it can be diagnosed?
The very first step is that your doctor should look your
history, that if you have ever been exposed to asbestos or not. It may include
your work history too along with your physical exam!
The next step should be followed by to get imaging of
abdomen. It may include CAT scan (CT scan), X-ray or MRI (Magnetic Resonance Imaging). Even though
mesothelioma cannot be confirmed visually, tumors perhaps can be seen or excess
of fluid can be seen also.
There are three main types of peritoneal mesothelioma
tumors:
Wet
Related with swelling and
ascites, small plaques and nodules are visible in this type of tumor.
Dry
This is the most common
type of tumor which is also painful, several small and one large in a similar
way located peritoneal masses can be seen.
Mixed
It is the combination of
both wet and dry tumors.
Paracentesis is performed to remove the excess fluid from the abdomen; a needle
is inserted into the peritoneal cavity to remove the excess fluid and also to
examine it by performing a test called cytologic. In this test specialists
examine abnormal cells in fluid but it is not a very effective test for
peritoneal mesothelioma.
Now the next step is most
effective one in terms of diagnosing peritoneal mesothelioma and that is the
collection of biopsy. In biopsy cells and tissues can be examined at
microscopic level. Biopsy is usually performed at first because it is quite safe. These tests use some special substances are
used to mark the cells of cancer and it also color the protein.
At times further testing may require
confirming this is because of the location of the tumors. So in this scenario
the next step should be peritoneoscopy. In this test, a local anesthesia is
being given and through a small incision with a tool called peritoneoscope
doctor looks inside the abdomen. A large sample of biopsy can be collected
through this test.
Very often peritoneal mesothelioma is being misdiagnosed
so it is very important to share your history of being exposed with asbestos
with your physician as asbestos is considered the main cause of this type of
mesothelioma.
So be aware of the symptoms of peritoneal mesothelioma.
As the awareness can save your life!