TY - JOUR A1 - Mandel, Philipp A1 - Wenzel, Mike A1 - Höh, Robert Benedikt A1 - Welte, Maria-Noemi A1 - Preißer, Felix Martin A1 - Inam, Tahir A1 - Wittler, Clarissa A1 - Humke, Clara Julia A1 - Köllermann, Jens A1 - Wild, Peter Johannes A1 - Würnschimmel, Christoph A1 - Tilki, Derya A1 - Graefen, Markus A1 - Kluth, Luis A1 - Karakiewicz, Pierre I. A1 - Chun, Felix A1 - Becker, Andreas T1 - Immunohistochemistry for prostate biopsy - impact on histological prostate cancer diagnoses and clinical decision making T2 - Current oncology N2 - Background: To test the value of immunohistochemistry (IHC) staining in prostate biopsies for changes in biopsy results and its impact on treatment decision-making. Methods: Between January 2017–June 2020, all patients undergoing prostate biopsies were identified and evaluated regarding additional IHC staining for diagnostic purpose. Final pathologic results after radical prostatectomy (RP) were analyzed regarding the effect of IHC at biopsy. Results: Of 606 biopsies, 350 (58.7%) received additional IHC staining. Of those, prostate cancer (PCa) was found in 208 patients (59.4%); while in 142 patients (40.6%), PCa could be ruled out through IHC. IHC patients harbored significantly more often Gleason 6 in biopsy (p < 0.01) and less suspicious baseline characteristics than patients without IHC. Of 185 patients with positive IHC and PCa detection, IHC led to a change in biopsy results in 81 (43.8%) patients. Of these patients with changes in biopsy results due to IHC, 42 (51.9%) underwent RP with 59.5% harboring ≥pT3 and/or Gleason 7–10. Conclusions: Patients with IHC stains had less suspicious characteristics than patients without IHC. Moreover, in patients with positive IHC and PCa detection, a change in biopsy results was observed in >40%. Patients with changes in biopsy results partly underwent RP, in which 60% harbored significant PCa. KW - immunohistochemistry KW - IHC KW - prostate cancer KW - radical prostatectomy KW - ASAP KW - Gleason Score Y1 - 2021 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/61443 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-614434 SN - 1718-7729 VL - 28 IS - 3 SP - 2123 EP - 2133 PB - MDPI CY - Basel ER -