Prostate Cancer
Description of Prostate Cancer:
Prostate cancer is a disease in which cancer develops in the prostate a gland
in the male reproductive system. It occurs when cells of the prostate mutate and
begin to multiply out of control. These cells may spread (metastasize) from the
prostate to other parts of the body, especially the bones and lymph nodes.
Prostate cancer may cause pain, difficulty in urinating, problems during sexual
intercourse, erectile dysfunction and other symptoms. However those symptoms are
present only in an advanced stage of the disease.
Rates of prostate cancer vary widely across the world. Although the rates
vary widely between countries, it is least common in South and East Asia, more
common in Europe, and most common in the United States. Prostate cancer develops
most frequently in men over fifty. This cancer can occur only in men, as the
prostate is exclusively of the male reproductive tract. It is one of the most
common types of cancer in men. However, many men who develop prostate cancer
never have symptoms, undergo no therapy, and eventually die of other causes.
That is because malignant neoplasms of the prostate are, in most cases, slow-growing,
and because most of those affected are over 60. Hence they often die of causes
unrelated to the prostate cancer, such as heart/circulatory disease, pneumonia,
other unconnected cancers or old age. Many factors, including genetics and diet,
have been implicated in the development of prostate cancer.
Prostate cancer is most often discovered by PSA (prostate specific antigen)
screening and less commonly by physical examination or by symptoms. There is
some current concern about the accuracy of the PSA test and its usefulness.
Suspected prostate cancer is typically confirmed by taking a biopsy of the
prostate and examining it under a microscope. Further tests, such as CT scans
and bone scans, may be performed to determine whether prostate cancer has spread.
Treatment options for prostate cancer with intent to cure are primarily
surgery and radiation therapy. Other treatments such as hormonal therapy,
chemotherapy, proton therapy, cryosurgery, high intensity focused ultrasound (HIFU)
also exist depending on the clinical scenario and desired outcome. Abiraterone
acetate is showing promise in reducing tumor size and PSA levels in aggressive
end-stage prostate cancers. The age and underlying health of the man as well as
the extent of spread, appearance under the microscope and response of the cancer
to initial treatment are important in determining the outcome of the disease.
The decision whether or not to treat localized prostate cancer (a tumor that is
contained within the prostate) with curative intent is a patient trade-off
between the expected beneficial and harmful effects in terms of patient survival
and quality of life.
Specific Prostate Cancer Information
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