Inverse Association of Prostatic Chronic Inflammation among Prostate Cancer Tumor Grade Groups: Retrospective Study of 738 Consecutive Cases Elected to a First Random Biopsy Set

The study aimed to evaluate associations of prostatic chronic inflammation (PCI) with prostate cancer (PCA) grade groups by the International Society of Urological Pathology (ISUP).

The study evaluated retrospectively 738 cases. The patient population was sampled into 3 groups collecting cases without and with PCA including subjects with lSUP grade group 1 and grade groups 2-5.

PCI was assessed in 185 patients (25.1%) and PCA in 361 patients (48.9%) of whom 188 (25.5%) had ISUP grade and 173 (23.4%) had ISUP groups 2-5 tumors. PCI inversely related to ISUP groups (p < 0.0001). In multivariate analysis, the risk of ISUP grade group 1 PCA compared to negative cases associated positively with age (OR 1.042; p = 0.001) but inversely with total prostate volume (TPV; OR 0.965; p < 0.0001) and PCI (OR 0.314; p < 0.0001). Intermediate-high grade tumors associated positively with age (OR 1.065; p < 0.0001), prostate specific antigen (OR 1.167; p < 0.0001), and abnormal digital rectal examination (OR 2.251; p < 0.0001) but inversely with TPV (OR 0.921; p < 0.0001) and PCI (OR 0.106; p < 0.0001).

PCI decreased the risk of PCA among ISUP tumor grade groups.

Urologia internationalis. 2018 Apr 19 [Epub ahead of print]

Antonio Benito Porcaro, Alessandro Tafuri, Giovanni Novella, Marco Sebben, Arianna Mariotto, Davide Inverardi, Paolo Corsi, Tania Processali, Marco Pirozzi, Nelia Amigoni, Riccardo Rizzetto, Matteo Brunelli, Matteo Balzarro, Salvatore Siracusano, Walter Artibani

Urologic Clinic, University Hospital, Ospedale Policlinico, Azienda Ospedaliera Universitaria Integrata, Verona, Italy., Department of Pathology, University Hospital, Ospedale Policlinico, Azienda Ospedaliera Universitaria Integrata, Verona, Italy.


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