Can the free/total psa ratio predict undetected intraductal carcinoma and cribriform pattern at biopsy?
- Rui M Bernardino 1,2, Leyi B Yin 3, Katherine Lajkosz 4, Jessica G Cockburn 5, Marian S Wettstein 5, Dixon Woon 6, David-Dan Nguyen 5, Rashid Sayyid 5, Ricardo Leão 7, Theodorus van der Kwast 8, Neil Fleshner 5
- Rui M Bernardino 1,2, Leyi B Yin 3, Katherine Lajkosz 4
- 1Division of Urology, Department of Surgical Oncology, University of Toronto, Princess Margaret Cancer Centre, Toronto, ON, Canada. ruimmbernardino@gmail.com.
- 2Computational and Experimental Biology Group, NOVA Medical School, Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Lisboa, Portugal. ruimmbernardino@gmail.com.
- 3Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada.
- 4Department of Statistics, Princess Margaret Cancer Center, Toronto, ON, Canada.
- 5Division of Urology, Department of Surgical Oncology, University of Toronto, Princess Margaret Cancer Centre, Toronto, ON, Canada.
- 6Department of Surgery, The University of Melbourne, Melbourne, VIC, Australia.
- 7CUF Hospitals, Lisbon, Portugal.
- 8Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada.
- 0Division of Urology, Department of Surgical Oncology, University of Toronto, Princess Margaret Cancer Centre, Toronto, ON, Canada. ruimmbernardino@gmail.com.
Related Experiment Videos
Contact us if these videos are not relevant.
Contact us if these videos are not relevant.
View abstract on PubMed
Summary
This summary is machine-generated.Free-to-total PSA ratio (FPSAR) does not reliably identify aggressive prostate cancer variants like intraductal carcinoma (IDC) or cribriform pattern (Crib) during biopsy. Further research is needed to find better biomarkers for these high-risk prostate cancer types.
Area Of Science
- Urology
- Oncology
- Pathology
Background
- Intraductal carcinoma (IDC) and cribriform pattern (Crib) are aggressive prostate cancer variants associated with poor outcomes.
- Accurate identification of IDC/Crib at biopsy is crucial for treatment planning.
Purpose Of The Study
- To evaluate the predictive value of the Free-to-total PSA ratio (FPSAR) in detecting missed IDC/Crib at prostate biopsy.
- To compare FPSAR's accuracy against final radical prostatectomy (RP) findings.
Main Methods
- Retrospective analysis of 639 patients undergoing RP between 2015-2022.
- Multivariate logistic regression to identify predictors of false-negative biopsies for IDC/Crib.
- Chi-squared and Kruskal-Wallis tests to assess associations with FPSAR.
Main Results
- FPSAR (≥0.10) was not an independent predictor of false-negative IDC/Crib biopsies (p > 0.05).
- Factors associated with lower odds of false-negative biopsies included higher percentage of pattern 4 (≥10%), higher Gleason score (grade group 4/5), and a higher percentage of positive biopsy cores (≥33%).
Conclusions
- FPSAR is not a reliable biomarker for identifying IDC/Crib status during prostate biopsy.
- Additional research is necessary to discover effective biomarkers for diagnosing aggressive prostate cancer variants.
Related Experiment Videos
Contact us if these videos are not relevant.
Contact us if these videos are not relevant.

