Abstract
Purpose
To determine the diagnostic yield of transition zone (TZB) and midline apical biopsies (MAB) in baseline transrectal ultrasound (TRUS)-guided biopsies and to establish whether TZB and MAB for the diagnosis of prostate cancer (PCa) add clinical relevant information.
Methods
We performed baseline 9-core TRUS-guided biopsy in 412 consecutive subjects using sextant biopsies of the PZ (PZB), with an additional TZB on either side and a MAB at the prostatic apex. We determined the incremental diagnostic value of additional TZB an MAB to sextant PZB.
Results
Within a cohort of 412 patients with a median PSA of 7.5 ng/ml, 178 (43.2 %) patients were diagnosed with PCa upon baseline TRUS-guided biopsies. In 102 cases, at least one TZB was positive for PCa, with 6/412 (1.4 %) cases displaying PCa in the TZB only. MAB alone was positive for PCa in 4/412 (1.0 %) cases. One case (1/412; 0.2 %) had only a TZB and a MAB positive for PCa without positive PZB. Thus, 11/412 (2.7 %) of cases would not have been diagnosed with PCa at baseline TRUS-guided biopsy had only sextant PZ biopsy been performed. TZB detected a high-grade Gleason component (Gleason 4 and/or 5) not present in the PZB in 2.4 % of PCa cases.
Conclusions
There is limited value for TZB and MAB in the context of sextant PZB at baseline TRUS-guided biopsies for PCa.
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Somford, D.M., Vreuls, W., Jansen, T.S. et al. Incremental value of transition zone and midline apical biopsy at baseline TRUS-guided biopsy for prostate cancer detection. World J Urol 32, 461–467 (2014). https://doi.org/10.1007/s00345-013-1130-3
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DOI: https://doi.org/10.1007/s00345-013-1130-3