Prostate Cancer
Most
cells in the body undergo a normal process of dividing, maturing
and dying. Cancer occurs when cells in the body grow uncontrollably.
Cancer cells divide and mature but they don’t die. They
continue to grow and produce more cells. Prostate cancer occurs
when the abnormal cells form clusters or tumors in the prostate.
This type of cancer begins as small groups of tumors located
within the prostate. When the cancer is at this stage the
disease is over 90% curable, unfortunately it is almost impossible
to detect because patients experience little or no symptoms.
Prostate cancer is a slow growing cancer; in many instances
it takes almost 10 years from onset for it to get to a point
where it becomes problematic.
If the cancer becomes problematic, and is allowed to continue
to grow, it can spread in a process called metastasis. This
occurs when the cancer leaves the prostate and invades other
parts of the body. This is done through the body’s lymph
nodes. The cancer enters the lymph nodes and travels through
the blood stream to other parts of the body. The original
tumors in the prostate are known as the primary tumors. When
prostate cancer travels, it can enter lymph nodes, body organs
and even bone, but it is still considered prostate cancer.
The tumors formed in the new body parts are known as secondary
tumors.
Stages:
Prostate cancer can be classified into several stages:
- Stage 1 – tumor cannot be felt during a rectal exam,
but other tests such as a PSA blood test can detect the disease
- Stage 2 – tumor can be felt during a rectal exam,
but has not spread past the prostate
- Stage 3 - tumor has spread outside the prostate gland and
into the seminal vesicles
- Stage 4 – tumor has spread outside the prostate gland,
into the seminal vesicles, as well as into lymph nodes and
other organs of the body
Risk Factors:
There are many risk factors that attribute to prostate cancer,
but the most important are age, ethnicity, diet and genetics.
Age:
It is still unclear why age contributes to the onset of
prostate cancer, but it is believed that age is the most important
factor in the development of prostate cancer. Men under the
age of 40 rarely develop prostate cancer, but as men reach
into their 50’s, 60’s and 70’s, prostate
cancer becomes an overwhelming possibility. While age is the
number one factor, it is said that most old men die with prostate
cancer, not from it. Prostate cancer is most often slow-growing;
men diagnosed often pass away without the disease ever hindering
their life expectancy.
Race:
Race is another important factor in the development of prostate
cancer. While White American men do outnumber African American
men, African Americans are the most highly susceptible race
to prostate cancer. It is unknown why that is, but most feel
genetics and diet play a large part in this. North America
and Northern Europe are the two areas of the world where the
percentages of prostate cancer are at their highest.
Diet:
It is believed by many that diet can strongly influence
susceptibility to prostate cancer. No conclusive evidence
has been found that points to certain foods, but those whose
diets are low in fat and consist largely of fruits and vegetables
seem less likely to develop prostate cancer.
Genetics:
Genetics causes human ailments to be passed from one generation to the next. While it is believed that heredity is responsible for less than 10% of prostate cancer in families, men who have close relatives with the disease have an alarmingly high rate of susceptibility.
Prostate Cancer Symptoms:
The early stages of prostate cancer rarely cause symptoms.
However, in some cases, men with prostate cancer may experience
one or all of these problems:
- Fever and chills
- Burning and painful urination
- Frequent urination, especially at night
- Lower abdominal pressure and pain
- Difficulty urinating
- Painful ejaculation
- Blood in the urine
- Lower back pain
These symptoms can be caused by prostate cancer as well
as other prostate diseases so it is imperative to have physicians
thoroughly check in order to properly diagnose your condition.
If you are a man over the age of 50 and experience any of
these symptoms, you should speak with a doctor immediately.
Men over the age of 45 should consider prostate screening
to ensure that the onset of any prostate problems are detected.
Treatment:
Prostate cancer is a very complex disease and it reacts
differently in different people. There are several treatment
options, and it is very difficult to determine which treatment
is best for each patient. It is very important to determine
what stage the cancer is in and how fast it might be growing.
Some prostate cancer grows and spreads very quickly, whereas
others simply stay in the prostate without causing any problems.
Correctly diagnosing the prostate cancer is the key to treatment.
There are several treatment options available including, localized
treatment options, hormonal therapy and chemotherapy.
Localized Treatment Options:
These options are given to patients who are diagnosed with
localized prostate cancer, which means the cancer resides
within the prostate or in the general area of the gland. The
choice for localized treatment should be based on the patient’s
age, general health and the stage and grade of the cancer.
Patients are given three options when dealing with localized
cancer, watchful waiting, radiation or surgery.
If the cancer is in early stages or very low grade, watching
and waiting may be the best approach. Cancer progression is
monitored closely, but some men feel it is better to delay
unpleasant treatment as well as the potential treatment side
effects.
Radiation involves killing the cancer cells and surrounding
tissue with radioactive material. This is generally the treatment
option that is used by men that, because of their health status,
age and cancer stage, are not ideal candidates for surgery.
Radiation is a non-invasive procedure that does not involve
nearly as many risks as an open procedure, yet should still
be thoroughly considered because there are many potential
side effects, some which could be permanent.
Surgery involves removing the entire prostate gland. Surgery
is only recommended when the cancer is contained within the
prostate, when it is in its early stages and when the patient
is relatively young and healthy. Surgery is a way to effectively
stop the cancer in its tracks, but side effects from the procedure
could be life altering.
Hormonal Therapy:
Prostate cancer cells survive and thrive on male hormones
or androgens. One such androgen is testosterone. Hormonal
therapy cannot cure cancer but it can effectively reduce the
number of androgens in the prostate which will cause the prostate
cancer to either shrink or grow more slowly. The results of
this form of therapy will only be temporary because not all
cancer cells require androgens in order to survive. Many times,
this therapy is used in conjunction with radiation in order
to increase its effectiveness.
Chemotherapy:
Chemotherapy is a class of drugs that effectively kill off
rapidly dividing cells such as cancer cells. Inhibiting rapid
cell division can slow down the growth of the cancer. Chemotherapy
is most often used on those patients that are in the advanced
stages of prostate cancer and are no longer responding to
hormonal therapy. This therapy can be beneficial to many patients,
but it does pose a certain amount of concern because in the
process of killing cancer cells, it also inhibits the division
of non-cancerous cells. There are also side effects that can
temporarily hinder normal daily activities. The most common
are hair loss, nausea, vomiting and fatigue.
Prevention:
Regular checkups can help to detect the prostate cancer early,
so that if it does occur, you will have greater chances to
aggressively fight the disease. The two ways in which doctors
can detect the disease are through rectal exams and PSA tests.
- Rectal exams allow the doctor to feel the prostate, while
this can be effective, this exam only allows the doctor to
feel three sides of the prostate, therefore, it is not 100%
effective.
- PSA tests are blood tests that detect a protein made specifically
by the prostate. The prostate normally produces a very small
amount of this protein, but when prostate cancer invades the
prostate, the production of this protein increases. A PSA
test can detect the increase in production of the protein.
The best prevention methods for prostate cancer are to alter
the risk factors that are under your control. Maintaining
a healthy diet rich in fruits and vegetables as well as exercising
daily can reduce your risk of developing the disease.
Realistic Results:
If detected early enough, prostate cancer can be effectively
treated and patients can live a relatively normal life. No
matter which treatment a patient undergoes, there will be
side effects which may very well hinder normal daily activities.
It is important to remember that prostate cancer grows very
slowly, and if detected, could have little or no effect on
life expectancy. Yearly prostate exams will ensure early detection
which will allow for the most aggressive treatment possible.
Being aware of the condition of your prostate can be truly
beneficial and can have a profound effect on the rest of your
life.
|