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Published on: November 17, 2023

Comparison of Gleason Scoring-2005 and 2014 Updates.

Cherry Bansal¹, Gurupriya Anand², Anshika Goyal³

¹Department of Pathology, Dr. S S Tantia Medical College, Hospital & Research Center, Sri Ganganagar, Rajasthan India.

Indian Journal of Surgical Oncology

|July 1, 2026

Summary

This summary is machine-generated.

The 2014 Gleason scoring update for prostate cancer improved reproducibility and prognosis prediction compared to the 2005 system. This revised grading system simplifies scoring and reduces variability among pathologists.

Keywords:

Cancer Gleason score ISUP Prostate

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Area of Science:

Urology
Oncology
Pathology

Background:

The Gleason grading system is crucial for prostate cancer prognostication.
Prostate cancer is a globally prevalent malignancy affecting men worldwide.
Previous versions of the Gleason score have undergone revisions to improve accuracy.

Purpose of the Study:

To compare changes in Gleason scoring between the 2005 and 2014 updates.
To evaluate the impact of the 2014 Gleason guidelines on prostate cancer grading.
To assess shifts in final scores and grade groups post-2014 update.

Main Methods:

Retrospective review of 88 prostate biopsy specimens.
Re-evaluation of specimens using the 2014 Gleason scoring guidelines.
Comparison of final scores and grade group assignments between 2005 and 2014 criteria.

Main Results:

67 out of 88 cases maintained the same total Gleason score.
Significant changes in total scores were observed in 21 cases (9 upgraded, 12 downgraded).
The 2014 update demonstrated improved reproducibility and reduced interobserver variability.

Conclusions:

The 2014 Gleason scoring update offers a simpler and more effective prognostic tool.
Adoption of the 2014 guidelines enhances consistency in prostate cancer grading.
The revised system is a better predictor of patient outcomes.