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Related Experiment Videos

Prostate specific antigen as tumor marker: relationship with histologic grading.

A Xess1, M Singh, K H Raghwendra

  • 1Department of Microbiology, Indira Gandhi Institute of Medical Sciences, Sheikhpura, Patna.

Indian Journal of Pathology & Microbiology
|May 25, 2002
PubMed
Summary

Serum prostate-specific antigen (PSA) levels are crucial for prostate cancer diagnosis. Elevated PSA in patients with suspected tumors correlates with histologic findings, aiding in differentiating benign prostatic hyperplasia from adenocarcinoma.

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Area of Science:

  • Oncology
  • Urology
  • Biochemistry

Background:

  • Prostate-specific antigen (PSA) is a key biomarker in oncology.
  • PSA testing significantly impacts prostate cancer management and diagnosis.
  • Accurate interpretation of PSA levels is vital for patient care.

Purpose of the Study:

  • To evaluate the correlation between serum PSA levels and histologic findings in patients with suspected prostate tumors.
  • To assess the diagnostic utility of PSA in differentiating benign prostatic hyperplasia (BHP), prostatic intraepithelial neoplasia (PIN), and prostate adenocarcinoma.

Main Methods:

  • Collected 395 serum samples from patients with clinically suspected prostate tumors.
  • Measured serum PSA levels for all samples.
  • Correlated elevated PSA levels with subsequent histologic examination results.

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Main Results:

  • Among 98 cases with elevated PSA, 42 (42.8%) were diagnosed with BHP, with 78.7% having PSA levels under 10 ng/ml.
  • Five patients (5.1%) had PIN, with most showing PSA levels under 10 ng/ml or up to 20 ng/ml.
  • Fifty-one (52%) cases were adenocarcinoma, with PSA levels ranging from <10 ng/ml to >50 ng/ml, generally correlating with tumor grade.

Conclusions:

  • Serum PSA levels show a correlation with histologic findings in suspected prostate cancer.
  • PSA testing aids in distinguishing between BHP, PIN, and prostate adenocarcinoma.
  • PSA levels vary significantly across different prostate pathologies, offering diagnostic value.