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Intraluminal crystalloids are highly associated with prostatic adenocarcinoma on concurrent biopsy specimens

Prostate Cancer and Prostatic Diseases volume 10, pages 279–282 (2007)Cite this article

Abstract

Prostatic crystalloids are intraluminal eosinophilic structures with variable size and shape. Their presence has been described in conjunction with the occurrence of prostatic adenocarcinoma (pCA). We herein report the association of crystalloids and pCA in a prospective trial utilizing an extended multi-site transrectal ultrasound-guided (TRUS) prostate biopsy protocol. Three hundred and forty-four consecutive patients were prospectively enrolled at the Dallas Veterans Administration Hospital from November 2002 to September 2003. Indications for biopsy included a prostate-specific antigen (PSA) ⩾4 ng/ml and/or abnormal digital rectal exam. A single pathologist evaluated all biopsy cores and documented the presence or absence of significant histopathologic features. Univariate and multivariate logistic regression analysis were applied to test the association of these features with the presence of pCA on concurrent biopsy. Median number of core biopsies per patient was 12 (range 3–36). Overall cancer detection rate was 42.7%. pCA was diagnosed in 66 (81.5%) of 81 patients with crystalloids, 70 (69.3%) of 101 patients with high-grade prostatic intraepithelial neoplasia (HGPIN), and 32 (84.2%) of 38 patients with both HGPIN and crystalloids on biopsy. Multivariate analysis identified crystalloids (RR 4.53, 95% CI 2.30–8.88) and HGPIN (RR 3.20, 95% CI 1.84–5.57) as independent predictors of the presence of cancer on concurrent biopsy (P<0.001). In this prospective analysis, crystalloids were significantly associated with pCA on concurrent biopsy and more predictive of the presence of pCA than HGPIN. These findings suggest that the presence of crystalloids alone or in combination with HGPIN in prostate biopsies may be a more compelling indication for repeat biopsy than HGPIN alone.

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Authors and Affiliations

  1. Department of Urology, Dallas Veterans Administration Hospital, University of Texas Southwestern Medical Center at Dallas, Dallas, TX, USA

    R S Svatek, J A Karam, M J Shulman, V Margulis & E A Benaim

  2. Department of Pathology, Dallas Veterans Administration Hospital, University of Texas Southwestern Medical Center at Dallas, Dallas, TX, USA

    T E Rogers

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  1. R S Svatek
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  2. J A Karam
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  3. T E Rogers
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  4. M J Shulman
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  5. V Margulis
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  6. E A Benaim
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Correspondence to R S Svatek.

Additional information

This data was partly presented at the AUA meeting in 2004.

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Svatek, R., Karam, J., Rogers, T. et al. Intraluminal crystalloids are highly associated with prostatic adenocarcinoma on concurrent biopsy specimens. Prostate Cancer Prostatic Dis 10, 279–282 (2007). https://doi.org/10.1038/sj.pcan.4500954

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