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Related Concept Videos

Disorders of the Male Reproductive System01:20

Disorders of the Male Reproductive System

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Men's health issues are increasingly recognized as significant, with several conditions posing common threats. Among these, testicular cancer is especially prevalent in younger men, particularly those aged 20 to 35 years. The disease often manifests as a painless mass in the testicles, sometimes accompanied by a sensation of heaviness or a dull ache.
Prostate disorders are another major concern. These conditions can impair urinary flow due to the prostate's location around the urethra....
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Updated: Apr 15, 2026

Microarray-based Identification of Individual HERV Loci Expression: Application to Biomarker Discovery in Prostate Cancer
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Prostate-specific antigen-based screening: controversy and guidelines.

Eric H Kim, Gerald L Andriole

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    |April 11, 2015
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    Summary
    This summary is machine-generated.

    The precise survival benefit of prostate-specific antigen (PSA) screening for prostate cancer remains unclear due to conflicting trial results. Similarly, the advantage of immediate prostatectomy over observation for screen-detected cancers is debated.

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    Area of Science:

    • Oncology
    • Urology
    • Preventive Medicine

    Background:

    • Prostate-specific antigen (PSA) screening aids early prostate cancer detection, leading to stage migration.
    • Contradictory findings exist regarding the mortality benefit of PSA screening from major randomized controlled trials (ERSPC vs. PLCO).
    • The optimal management strategy for screen-detected prostate cancer, specifically immediate surgery versus observation, is also debated due to differing trial outcomes (PIVOT vs. SPCG-4).

    Purpose of the Study:

    • To analyze the discrepancies in outcomes from key randomized controlled trials on PSA screening and prostate cancer treatment.
    • To clarify the mortality benefit of early prostate cancer detection through PSA screening.
    • To evaluate the survival advantage of prostatectomy compared to observation for screen-detected prostate cancer.

    Main Methods:

    • Review and comparison of results from major randomized controlled trials: European Randomized Study of Screening for Prostate Cancer (ERSPC) and the US Prostate, Lung, Colorectal, and Ovarian (PLCO) Cancer Screening Trial.
    • Analysis of data from the Prostate Cancer Intervention Versus Observation Trial (PIVOT) and the Scandinavian Prostate Cancer Group Study Number Four (SPCG-4) comparing prostatectomy and observation.
    • Synthesis of evidence to address the controversies surrounding PSA screening and treatment efficacy.

    Main Results:

    • The ERSPC trial indicated a survival benefit from PSA screening, whereas the PLCO trial did not find a significant mortality reduction.
    • The PIVOT trial showed no survival advantage for prostatectomy in PSA-screened men, contrasting with the SPCG-4 trial's finding of a benefit for prostatectomy in clinically diagnosed cases.
    • These conflicting results contribute to varied clinical guidelines for prostate cancer screening and management.

    Conclusions:

    • The precise mortality benefit of PSA screening for prostate cancer is not definitively established due to inconsistent trial data.
    • The optimal treatment strategy for screen-detected prostate cancer remains controversial, with differing evidence on the benefits of immediate surgery versus active surveillance.
    • The lack of consensus necessitates careful consideration and highlights the need for further research to guide clinical practice and patient decision-making.