Abstract
By definition, stage A prostatic adenocarcinoma is prostatic malignancy that cannot be defined by digital rectal examination. These patients frequently undergo transurethral resection of the prostate (TURP) for benign prostatic hyperplasia. Carcinoma is incidentally found in approximately 10%–27% of the resected specimen [15]. These stage A tumors can be further subdivided into stage A1 (low volume and grade) and stage A2 (higher volume and grade) disease. At the University of California at Los Angeles (UCLA) stage A1 is defined as malignancy of Gleason sum 4 or less involving 5% or less of the resected tumor volume. All other digitally impalpable tumors are classified as stage A2. Digital rectal examination and perineal or transrectal needle biopsy were not able to detect the majority of these neoplasms prior to TURP.
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© 1991 Springer-Verlag Berlin Heidelberg
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Stenzl, A., deKernion, J.B., Layfield, L. (1991). Routine or Ultrasound-Guided Biopsy for a Benign Prostatic Lesion. In: Altwein, J.E., Faul, P., Schneider, W. (eds) Incidental Carcinoma of the Prostate. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-76129-4_6
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DOI: https://doi.org/10.1007/978-3-642-76129-4_6
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