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Predicting Pathological Stage of Localized Prostate Cancer

John Naitoh, MD; Fred Dorey, PhD; Jean B. deKernion, PhD
JAMA. 1997;278(12):980-981. doi:10.1001/jama.1997.03550120040026.
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To the Editor.  —Dr Partin and colleagues1 recently updated their experience using prostate-specific antigen (PSA) level, clinical stage, and tumor grade for predicting the pathological stage of prostate cancer determined at the time of radical prostatectomy.The authors are to be commended for this herculean effort. However, in examining our own series of radical prostatectomies, our data did not correspond to the outcomes listed in the article. Focusing the analysis of tumors with a Gleason score of 6 or 7, clinical stage of T2b, and PSA levels ranging between 4 and 10 ng/mL, the chance of having organ-confined disease was greater than that reported by Partin et al (70% vs 38% for tumors with Gleason scores of 6 and 50% vs 22% for tumors with Gleason scores of 7). This may be because of the high rate of interobserver variability that exists in clinical staging based on the digital

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The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
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