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KMID : 0358320090500030229
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Korean Journal of Urology
2009 Volume.50 No. 3 p.229 ~ p.236
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Pathologic Characteristics and Prognosis of Pathologic T0 Prostate Cancer
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Lee Seung-Ryeol
Ham Won-Sik
Kim Won-Tae
Ju Hee-Jeong
Lee Jin-Sun
Choi Young-Deuk
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Abstract
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Purpose: We evaluated the pathologic characteristics and prognosis of pathologic T0 (pT0) prostate cancer (PC).
Materials and Methods: Of 1,196 consecutive men who underwent radical prostatectomy (RP) between January 1992 and November 2008, 34 patients (mean age, 68.8±7.9 years; range, 48-85) had pT0 PC. They were categorized into 4 groups according to neoadjuvant hormone therapy (NHT) and diagnostic methods. The initial PSA, 5 alpha-reductase inhibitor (5αRI), Gleason score of prostatic needle biopsy (PNB) or transurethral resection of the prostate (TURP), clinical stage, and presence of high-grade prostatic intraepithelial neoplasia were evaluated. Clinical and biochemical progression were also evaluated.
Results: 34 patients were categorized into 4 groups (Group I: 9 without NHT, diagnosed by PNB [1.1%]; Group II: 8 without NHT, diagnosed by TURP [11.3%]; Group III: 16 with NHT, diagnosed by PNB [5.5%]; Group IV: 1 with NHT, diagnosed by TURP [3.8%]). Group I had serum prostate-specific antigen (PSA)＜15.0 ng/ml, one positive biopsy core, and a Gleason score≤7. Group II had serum PSA＜10.1 ng/ml, chips involved with cancer＜10.0%, and a Gleason score≤6. There were more patients taking 5αRI and high-grade PIN among patients without NHT. None of patients with pathologic pT0 PC had clinical or biochemical progression during follow-up, except 3 patients with NHT (mean, 22 months; range,
2-105 months).
Conclusions: Patients without NHT had more favorable clinical and pathologic results. In our study, except for 3 patients with NHT, all patients had undetectable PSA levels after RP. We need more time for follow-up to conclude whether the prognosis of pT0 PC is favorable.
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KEYWORD
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Prostatic neoplasms, Prostatectomy
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