Impact on the Clinical Outcome of Prostate Cancer by the 2005 International Society of Urological Pathology Modified Gleason Grading System
Impact on the Clinical Outcome of Prostate Cancer by the 2005 International Society of Urological Pathology Modified Gleason Grading System
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DOI:
10.1097/pas.0b013e3182486faf
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发表时间:
2012-06-01
影响因子:
5.6
通讯作者:
Wu, Chin-Lee
中科院分区:
文献类型:
--
作者:
Dong, Fei;Wang, Chaofu;Wu, Chin-Lee
The 2005 International Society of Urological Pathology (ISUP) Consensus Conference modified the Gleason grading system for prostate cancer. In the modified criteria, ill-defined glands with poorly formed lumina and large cribriform glands with smooth borders, classically described as Gleason pattern 3 adenocarcinoma, were redefined as Gleason pattern 4. To evaluate the clinical outcome of patients upgraded by the ISUP criteria, the histologic slides of 1240 consecutive radical prostatectomy specimens at a single institution were reviewed, and each case of adenocarcinoma was graded on the basis of the original and modified Gleason criteria. A total of 806 patients with prostate cancer of classical Gleason score 3 + 3 = 6 or 3 + 4 = 7 and modified Gleason score 6 to 8 were analyzed with a median overall follow-up of 12.6 years. In the study population, 34% of patients with classical Gleason score 3 + 3 = 6 prostate cancer were upgraded to modified Gleason score 7 or 8 by the ISUP criteria. Compared to patients with modified Gleason score 3 + 3 = 6 and patients with classical Gleason score 3 + 4 = 7, the upgraded patients were at intermediate risk for biochemical progression (paired log-rank P