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Related Experiment Videos

[Pathological basis for elevation of serum prostate specific antigen]

T L Xia1, F M Deng, T Feng

  • 1Institute of Urology, Beijing Medical University.

Zhonghua Yi Xue Za Zhi
|May 1, 1994
PubMed
Summary

Elevated serum prostate-specific antigen (PSA) levels between 4.0 and 10.0 ng/ml indicate a higher risk for prostate cancer. This PSA range requires further investigation for accurate diagnosis.

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Area of Science:

  • Urology
  • Oncology
  • Biochemistry

Context:

  • Investigated 67 patients with elevated serum prostate-specific antigen (PSA) > 4 ng/ml.
  • Included patients with confirmed prostate cancer and benign prostatic lesions.

Purpose:

  • To evaluate the diagnostic utility of serum PSA levels in distinguishing prostate cancer from benign prostatic conditions.
  • To identify a critical PSA range indicative of increased prostate cancer risk.

Summary:

  • Serum PSA was significantly higher in prostate cancer patients (n=24) compared to benign cases (n=43).
  • A threshold of 10 ng/ml yielded 83.3% sensitivity and 74.4% specificity for prostate cancer detection.
  • The 4.0-10.0 ng/ml PSA range is proposed as a 'dangerous zone' requiring clinical attention.

Impact:

  • Suggests potential pathological bases for elevated PSA, including epithelium-blood barrier lesions and hyperplasia.
  • Highlights the clinical significance of the 4.0-10.0 ng/ml PSA range for early prostate cancer detection strategies.
  • Informs diagnostic protocols for patients presenting with intermediate PSA levels.

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