Radical prostatectomy for impalpable prostate cancer: the Johns Hopkins experience with tumors found on transurethral resection (stages T1A and T1B) and on needle biopsy (stage T1C)

The Journal of Urology
Jonathan I EpsteinC B Brendler

Abstract

We review the pathological findings of impalpable prostate cancer detected by transurethral resection (stages T1a and T1b) and needle biopsy (stage T1c). The short-term (4 years) and long-term (8 to 10 years) natural histories of untreated stage T1a prostate cancer are examined, as are options to follow patients expectantly. The findings on radical prostatectomy for stages T1a and T1b disease are reviewed and compared. Of the 64 cases of stage T1a disease 13 (20%) showed substantial tumor, including 7 with more than 1 cc of tumor, 5 with capsular penetration and 1 with a Gleason grade 4 + 5 = 9 tumor. Based on preoperative pathological parameters, one could not predict which cases had minimal versus substantial tumor. In a study from our institution that undertook complete histological examination of 39 radical prostatectomy specimens of stage T1b carcinoma, we found that all prostates contained residual carcinoma, 26% had capsular penetration and 10% had invasion of the seminal vesicles. When comparing morphometrically determined volumes of carcinoma with similar data from 56 patients with stage T2 carcinoma, stage T1b tumors were much more heterogeneous in grade, location and volume than were stage T2 lesions. Unless all 3 va...Continue Reading

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