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Vulvar Cancer
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What is Vulvar Cancer? The
vulva is the part of a woman's reproductive organ that is
visible from outside of the
body. The vulva consists of the
vestibule, the labia majora, the labia minora, and the clitoris.
The labia majora is the outer lips of the vagina and the labia
minora is the inner lips of the vagina. Most cases of vulvar
cancer consist of
cancer cells that grow in either the labia majora or labia minora. It is very rare that
cancer cells grow
in the clitoris. Causes of Vulvar Cancer As with most cancers,
exact causes of vulvar
cancer are not known.
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However, many studies and
clinical trials have given, and continue to give
strong evidence to support two theories of
possible causes. Both DNA mutations and HPV infections have proven to show
a direct link to vulvar
cancer. There are two
types of genes that regulate cell growth. Oncogenes are genes that promote cell growth and
division. They speed up the process in which
cells grow. Tumor suppressor genes are genes
that slow down the process in which cells grow
and divide.
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A healthy human has a balanced
system between the two genes that allow their
cells to grow the way they are supposed to, by
following the instructions of the DNA. It is
believed by many medical experts and health care
providers that
cancer cells disrupt this system
and may be able to change how each of the two
genes work, which would allow a
cancer to grow
easier. HPV infections are sexually transmitted
diseases. The link between HPV infections and
vulvar
cancer is not completely understood.
However, about half of sexually active people
will obtain an HPV
infection at some point in
their life, while a little less than half of all
cases of vulvar
cancer are in some way related
to HPV infections. Vulvar Cancer Prevention
There are not many preventive measure a woman
can take in order to prevent vulvar
cancer.
There is still a lot about the disease that
medical professionals continue to figure out,
but do not fully understand. Studies have shown
that tobacco smoke can lead to vulvar
cancer, as
well as lung
cancer and many other types of
cancers and diseases.
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The link between tobacco smoke
and vulvar
cancer is not fully understood.
However, statistics show that women who smoke
are twice as likely to get vulvar
cancer, than
those who do not. Therefore, not
smoking cigarettes or tobacco in any way, can
help prevent vulvar
cancer. Since there is a
strong link between HPV infections and vulvar
cancer, health care providers suggest that not
being sexually active can really help in
preventing vulvar
cancer. Doctors suggest to not
have multiple sex partners, and to not engage in
sex acts with someone who has had multiple sex
partners. Types of Vulvar Cancer There are two
main types of vulvar
cancer. They are squamous
cell carcinoma and melanoma of the vulva.
Adenocarcinoma and Paget's disease are two other
types of vulvar
cancer. However, they are very
rare. Since vulvar
cancer itself is rare, adenocarcinoma and Paget's disease account for a
very small percentage of cancers in females.
Squamous cell vulvar carcinoma accounts for
about ninety percent of all vulvar
cancer cases
in the United States.
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Vulvar
cancer is a type of
skin
cancer, and since squamous cells make up
most of a human's skin, it is easy to understand
why this type of vulvar
cancer is more common.
Melanoma of the vulva is the second most common
type of vulvar
cancer. Although, only about one
in ten cases of vulvar
cancer is a melanoma of
the vulva. Melanocytes play a big role in
protecting human skin from sun light. If there
is too much ultraviolet light exposed, the
melanocytes could become cancerous.
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The biggest indication that a
woman has melanoma of the vulva is if their
vagina becomes thicker or changes in appearance,
through shape or color. Also, if a new mole
appears or an existing mole changes colors, this
also may indicate vulvar
cancer. Symptoms of Vulvar Cancer A common
symptom of vulvar
cancer is abnormal bleeding,
discharge and
leakage from the vagina that is not related to
the patient's menstrual cycle. Constant itching
is another common vulvar
cancer symptom, as well
as changes in the skin surrounding the vulva.
Common skin related vulvar
cancer symptoms can
include pinkish or grayish freckles and/or
moles, the skin can become much more thicker
than usual and this can result in soreness or
tenderness. Vulvar Cancer Diagnosis Vulvar
cancer is diagnosed by first positively
detecting the disease in the patient. This can
be done through a surgical procedure, called a
biopsy.
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Once vulvar
cancer is found, the
patient's health care provider will perform
tests in order to determine what stage the
cancer is in and how aggressive it is. There are
many tests that can aid the health care provider
in figuring this out. These tests include a pap
test, endoscopic tests, such as a cystoscopy or
a proctoscopy, and X ray tests including a CT
(computed tomography) scan, a PET (positron
emission tomography) scan, or an MRI (magnetic
resonance imaging). These tests use different
methods to obtain further information about the
state of the
cancer and the vulva in which it is
growing. For a vulvar
cancer biopsy, a
pathologist will conduct a surgical procedure,
in which they remove a sample of tissue from the
vulva from the patient. They will then examine
the tissue sample under a microscope. If any
abnormalities in the tissue exist, they can be
clearly seen with the microscope.
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Vulvar Cancer Causes: Health care providers are not
sure of the exact cause of vulvar
cancer. It is suggested by
some medical experts that many cases of vulvar
cancer have been
caused by gene mutations, or changes to the DNA. There have been
many cases of vulvar
cancer that were caused by HPV infections,
according to doctors' best guesses. An HPV
infection is a
sexually transmitted disease. Also, various types of skin
diseases are believed to be linked to some cases of vulvar
cancer.
DNA provides cells with instructions on how to
grow and divide. The cells that do not follow the instructions
of the DNA are cancerous. Genes that influence cells to divide
are known as oncongenes.
Genes that influence cells to stop dividing, or
to decrease the speed at which they divide, are
known as tumor suppressor genes. Recent studies
suggest that DNA mutations which disrupt the way
oncongenes and tumor suppressor genes work, may
be linked to causing vulvar
cancer, and possibly
other cancers. Cancers that are caused by these
mutations are most likely to occur while the
patients is living, as oppose to being born with
the defect. However, research into this possible
cause of vulvar
cancer suggest that if a patient
is born with this specific defect, then it might
be due to one of or both parents having smoked
cigarettes. While the link is not completely
understood, many studies have suggested HPV
infections, which are sexually transmitted
diseases, may cause vulvar
cancer. Statistics
show that about half of all people who engage in
sex will have some form of an HPV
infection at
one point during the course of their lives. Less
than (but close to) half of vulvar
cancer cases
are in some way related to HPV infections. |
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Types of Vulvar Cancer:
There are
multiple different types of vulvar
cancer. The
most common type of vulvar
cancer is squamous
cell carcinoma. Another common type of vulvar
cancer is melanoma of the vulva. These two types
of the disease account for the majority of vulvar
cancer cases. Other types of the disease
include adenocarcinoma, basal cell carcinoma,
and Paget's disease of the vulva. However, these
types of vulvar
cancer are very rare. About nine
out of ten cases of vulvar
cancer are squamous
cell carcinoma. The majority of human skin is
made up of squamous cells. Since there are so
many squamous cells, it is more common for those
cells to become cancerous, and thereby lead to a
case of squamous cell carcinoma. This type of
vulvar
cancer usually causes pinkish or white
wart like lumps. The vulva will most likely
become thicker, and soreness and/or tenderness
is common. About fifty percent of those who have squamous cell vulvar carcinoma report constant
itching on or around the vulva. It is also
common for women who have this type of vulvar
cancer to experience pain in and around the
vulva, and it is usually painful to urinate
while the
cancer exists in the patient. Other
common symptoms of squamous cell vulvar
carcinoma can include abnormal bleeding and
leaking unrelated to the patient's menstrual
cycle. If the squamous cell vulvar carcinoma is
detected in it's initial stage and/or if the
cancer is small in size, it can easily be
surgically removed. This type of vulvar
cancer
is the next most common type of vulvar
cancer,
after squamous cell carcinoma. However, less
than ten percent of vulvar
cancer cases are
identified as melanoma of the vulva. A commonly
reported symptom of this type of vulvar
cancer
is an unusual growth in the skin, in or around
the vulva. Also, changes in shape, color, or
size in moles that have been present for a long
period of time is common with melanoma of the
vulva. Adenocarcinoma is another type of
cancer
that can form in the vulva. Adenocarcinoma is
extremely uncommon. This type of vulvar
cancer
starts in the glands that are present at the
exposed opening of the vagina. These glands,
called bartholin's glands, create a mucus-like
lubricant. Although it is not common,
adenocarcinoma can sometimes grow in sweat
glands that are present in the vulva. Paget's
disease of the vulva is another rare type of
vulvar
cancer. This type of vulvar
cancer forms
by adenocarcinoma cells growing in the skin of
the vulva. Paget's disease of the vulva often
causes the vulva to become pinkish and tender.
This type of vulvar
cancer can also grow into
distant tissue. Most types of vulvar
cancer are
connected to skin cancers. This is because the
vulva is made, in large part, by epithelial
tissue. Most types of vulvar
cancer grow very
slowly, especially squamous cell carcinomas,
which account for most of the cases of vulvar
cancer. Therefore, if the disease is detected as
soon as symptoms are first noticed, there is a
good chance that the patient can be cured of the
disease through surgery or other forms of
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Vulvar cancer prognosis:
Vulvar
cancer prognosis is a prediction made by
a health care provider. This prediction focuses
on how the health care provider thinks the
disease will play out in a vulvar
cancer
patient. There are many factors that play a role
in determining the prognosis for vulvar
cancer.
Some of these factors are only related to the
patient and have nothing to do with the disease,
while others are directly related to the
disease.
Some
of the factors that can affect the prognosis of
vulvar
cancer that relate only to the patient
and not directly to the disease itself include
the patient's age, his or her personal medical
history, as well as his or her family medical
history. If the patient has a family history of vulvar
cancer, their chances of getting the
disease are increased. The way the patient
responds to chemotherapy drugs can also affect
the prognosis later on, after the disease is
diagnosed. Other factors that are directly
related to the disease will affect the
prognosis. These factors can include when the
disease was detected, the size of the
cancer,
and whether metastasis has occurred yet. If the
cancer is found in it's early stages, the
chances of completely removing the
cancer
through surgery are much better. If the
cancer
is in its later stages and metastasis has
occurred, surgery alone will not be able to
remove the disease. Vulvar
cancer statistics do
play a big role in the prognosis of the disease.
There are close to one thousand deaths caused by vulvar
cancer in the United States each year.
This means that a little more than twenty
percent of vulvar
cancer cases result in death. A
health care provider will take all of these
factors in order to predict if the disease is
treatable, how long the disease will last before
it is fully treated, the odds of complications
occurring, and all other aspects concerning the
duration of the disease |
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Vulvar Cancer Prevention:
While exact
causes of vulvar
cancer are not known, studies
and clinical trials have aided theories of how
the disease is caused. As a result, these
advancements in medicine suggest that certain
actions, or exhibiting restraint in certain
areas, might be able to prevent the disease.
There are still a lot of unknowns when dealing
with vulvar
cancer prevention. However, there
are some preventive measures that individuals
can take in order to lower their chances of
getting the disease. The two areas that are
believed to be heavily linked to vulvar
cancer
are sex and tobacco smoke. HPV
infections are believed to either cause vulvar
cancer or influence cells to become cancerous in
or near the vulva. Though it is not known why, HPV infections are more common in females under
the age of thirty. Therefore, in order to
prevent vulvar
cancer, if possible, young women
should not engage in sex at an early age. Women
should not have sex with multiple people, and
should not engage in sex with a partner who has
had sex with many people. It is also suggested
that women should may benefit from abstaining
from sex with a male who is not circumcised. Men
who are not circumcised have a higher chance of
obtain an HPV
infection, because the foreskin on
the penis that was not removed, can be infected
by HPV much easier than a a penis that is
circumcised. The link between smoking cigarettes
and vulvar
cancer is not one hundred percent
clear. However, studies and clinical trials
dealing with the connection show that females
who smoke are twice as likely to develop vulvar
cancer than those who do not smoke. Not smoking
can also decrease a woman's chances of getting
other cancers. Other cancers that can be caused
by smoking include kidney, bladder, mouth,
throat and lung
cancer. |
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