To screen or not to screen: ongoing debate in the early detection of prostate cancer.
Summary of "To screen or not to screen: ongoing debate in the early detection of prostate cancer."
Debate about the use of prostate-specific antigen (PSA) tests to screen prostate cancer in men is ongoing. Prostate cancer is the most common cancer after skin cancer in men and the second most deadly after lung cancer. An elevated PSA level can lead to this cancer's diagnosis and treatment even before the onset of symptoms. However, other causes also can create a high PSA level, which may lead to men being unnecessarily treated for prostate cancer. This article will shed some light on the issue and discuss prostate cancer screening.
Department of Nursing, University of Pennsylvania, Philadelphia.
This article was published in the following journal.
Name: Clinical journal of oncology nursing
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/21278045
- DOI: http://dx.doi.org/10.1188/11.CJON.97-98
Medical and Biotech [MESH] Definitions
X-ray Intensifying Screens
Screens which absorb the energy in the x-ray beam that has penetrated the patient and convert this energy into a light pattern which has as nearly as possible the same information as the original x-ray beam. The more light a screen produces for a given input of x-radiation, the less x-ray exposure and thus shorter exposure time are needed to expose the film. In most film-screen systems, the film is sandwiched between two screens in a cassette so that the emulsion on each side is exposed to the light from its contiguous screen.
Early Detection Of Cancer
Methods to identify and characterize cancer in the early stages of disease and predict tumor behavior.
Radiography, Dental, Digital
A rapid, low-dose, digital imaging system using a small intraoral sensor instead of radiographic film, an intensifying screen, and a charge-coupled device. It presents the possibility of reduced patient exposure and minimal distortion, although resolution and latitude are inferior to standard dental radiography. A receiver is placed in the mouth, routing signals to a computer which images the signals on a screen or in print. It includes digitizing from x-ray film or any other detector. (From MEDLINE abstracts; personal communication from Dr. Charles Berthold, NIDR)
A glycoprotein that is a kallikrein-like serine proteinase and an esterase, produced by epithelial cells of both normal and malignant prostate tissue. It is an important marker for the diagnosis of prostate cancer.
Production of an image when x-rays strike a fluorescent screen.
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