Related Experiment Videos
Incidental prostatic carcinoma: morphometry correlated with histological grade.
Virchows Archiv. A, Pathological Anatomy and Histopathology
|January 1, 1986
Summary
Prostate cancer grading using the Gleason system shows strong correlations with tumor volume and number. Autopsy studies support Gleason grading for predicting tumor behavior.
Area of Science:
- Uropathology
- Oncology
- Medical Statistics
Background:
- Prostate cancer grading is crucial for predicting patient outcomes.
- The Gleason grading system is widely used but requires validation through morphometric analysis.
- Inconsistent results from morphometric analyses of surgical specimens necessitate further investigation.
Purpose of the Study:
- To correlate histological grades of prostatic carcinoma (Gleason score) with morphometric variables.
- To assess the predictive value of tumor characteristics in autopsy-obtained prostates.
- To explain discrepancies in morphometric analyses of surgical prostate cancer samples.
Main Methods:
- Morphometric analysis of 254 step-sectioned prostates obtained at autopsy.
- Correlation of Gleason histological grades with three variables: tumor number, bilaterality, and tumor volume.
- Statistical analysis to determine the strength of correlations.
Main Results:
- All studied morphometric characteristics (tumor number, bilaterality, tumor volume) showed statistically significant correlations with Gleason histological grade.
- Tumor volume exhibited the strongest correlation with histological grade.
- Autopsy findings provide a basis for understanding variations in surgical morphometric analyses.
Conclusions:
- Tumor volume is a significant predictor of prostate cancer histological grade.
- Autopsy-based morphometric data support the reliability of the Gleason grading system.
- The Gleason system effectively aids in predicting prostate cancer behavior.