Objective:To evaluate prostate cancer gene 3 (PCA3) score accuracy in preoperative staging of cases of single microfocus of prostate cancer (PCa; less than 5% with Gleason score ≤ 6) diagnosed after repeat saturation biopsy (median 30 cores).
Methods:From January 2009 to March 2012, 38 patients (median 64 years) with a microfocus of PCa, median PSA of 9.1 ng/ml and T1c clinical stage underwent radical retropubic prostatectomy. PCA3 score (cut-off of 20 vs. 35) was evaluated in predicting insignificant PCa (pIPCa: cancer volume < 0.5 ml and Gleason score ≤ 6) versus organ-confined (OC) versus non-OC PCa.
Results:Median PCA3 score results were equal to 10 versus 53 (p < 0.05) versus 108 (p < 0.05) in the presence of pIPCa (13.2%), versus OC (65.8%) versus non-OC PCa (21%), respectively. PCA3 scores were significantly correlated with tumor volume.
Conclusions: A PCA3 score cut-off >20 in the presence of a microfocus of PCa is highly predictive of significant PCa (diagnostic accuracy equal to 86.8%) at definitive specimen.
Written by:
Pepe P, Fraggetta F, Galia A, Aragona F. Are you the author?
Urology Unit, Cannizzaro Hospital, Catania, Italy.
Reference: Urol Int. 2012 Aug 3. Epub ahead of print.
doi: 10.1159/000340055
PubMed Abstract
PMID: 22868485
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