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Cancer of the prostate is the
most common type of cancer among American men. It is estimated that one
out of every 10 American men will develop prostate cancer before the age of 85.
The risk of developing prostate cancer greatly increases with age. It rarely
occurs in men younger than 40. THE FUNCTION OF THE PROSTATE
The prostate is a male gland normally the size of a chestnut. It secretes
a milky fluid that is part of the semen needed for ejaculation. The prostate
gland lies at the base of the penis, just below the urinary bladder and in front
of the rectum. It surrounds the first inch of the urethra, the tube that
carries urine from the bladder. Its location allows a physician to feel
through the rectum that part of the gland where most tumors occur. PROSTATE
CANCER RISK FACTORS
The cause of prostate cancer remains unknown.
Several factors associated with a higher rate of prostate cancer, however, have
been identified. The risk of developing prostate cancer increases as a man
ages. A family history of prostate cancer in a brother or a father also
doubles one's chances of getting prostate cancer. There is no convincing
evidence to date that diet and/or nutrition play a role in developing prostate
cancer. SIGNS AND SYMPTOMS In the very early stages of prostate cancer,
there usually are no symptoms. When symptoms do develop, they vary according
to the size and location of the tumor and are often the same as those for benign
prostate conditions. In fact, it is more likely that any of these symptoms
would indicate prostate enlargement, known as benign prostatic hypertrophy, infection,
or other conditions rather than cancer. Still, any symptom should be checked
by a physician. Only a physician conducting the proper tests can determine
for sure whether the condition is cancerous or benign. Symptoms of prostate
problems include: - Weak or interrupted urine flow
- Inability to
urinate
- Difficulty in starting or stopping urination
- Need to urinate
frequently, especially at night
- Blood in the urine
- Painful or
burning urination
- Continuing pain in lower back, pelvis, or upper thighs.
EARLY DETECTION Every man over the age of 40 should
have a digital rectal examination as part of his regular annual physical checkup.
The physician inserts a gloved, lubricated finger into the rectum to palpate (feel)
any irregular or abnormal area of the prostate. Almost all prostate
cancers begin in that part of the prostate gland that can be palpated by rectal
examination. In addition, it is recommended that men 50 and over have an
annual prostate-specific antigen blood test (PSA). If there is a family
history (father or brother), screening should begin at age 40. If either
digital rectal examination of the prostate-specific blood test is abnormal, further
evaluation should be considered. DIAGNOSIS OF PROSTATE CANCER
Removal of a small tissue sample and its examination under a microscope, a
procedure known as a biopsy, is the ONLY way to determine conclusively if a growth
is cancerous. The physician will determine the need for this procedure.
TREATMENT OF PROSTATE CANCER Removal of the Prostate by
Surgery Surgery can be used to remove cancer from the prostate. If
found in its early stages, prostate cancer can be cured by surgery.
It is most often done during the cancer's early stages (Stages A and B), when
the prostate cancer is located only within the prostate. Surgery may help
prevent further spread of the cancer. Radiation Therapy
Radiation therapy uses high-energy rays to kill prostate cancer cells.
Because the rays cannot be directed perfectly, they may damage both cancer cells
and healthy cells nearby. If the dose of radiation is small and spread over time,
however, the healthy cells are able to recover and survive, and the cancer cells
eventually die. Radiation therapy usually is given for prostate cancer that
has not spread to distant areas of the body. Like surgery, this therapy
works best when the cancer is located in a small area. In early stages of
prostate cancer, radiation therapy can cure the disease.
Intensity-Modulated Radiation Therapy (IMRT) is a type of radiation therapy which can also be used in the treatment of prostate cancer. Click here to find out more.
Hormone
Therapy Two types of hormone therapy can be used: - Surgical removal
of the testicles, which make male hormones.
- Drugs that prevent the production
or block the action of testosterone and other male hormones.
Hormone
therapy is medication that is given by injection. This medication helps
stop the production of testosterone which will help stop the spread of the cancer
and will also aid in shrinking the tumor. The physician will make the determination
as to which treatment best suits you. |