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- W2026395409 abstract "You have accessJournal of UrologyBladder Cancer: Staging1 Apr 2015PD41-06 CLINICAL VALUE OF IMMUNOHISTOCHEMICALLY DETECTED LYMPHOVASCULAR INVASION IN TRANSURETHRAL BLADDER TUMOR RESECTION SPECIMEN FOR BLADDER CANCER STAGING BEFORE RADICAL CYSTECTOMY Tatsuo Gondo, Jun Nakashima, Rie Inoue, Takeshi Hashimoto, Yoshio Ohno, Makoto Ohori, Toshitaka Nagao, and Masaaki Tachibana Tatsuo GondoTatsuo Gondo More articles by this author , Jun NakashimaJun Nakashima More articles by this author , Rie InoueRie Inoue More articles by this author , Takeshi HashimotoTakeshi Hashimoto More articles by this author , Yoshio OhnoYoshio Ohno More articles by this author , Makoto OhoriMakoto Ohori More articles by this author , Toshitaka NagaoToshitaka Nagao More articles by this author , and Masaaki TachibanaMasaaki Tachibana More articles by this author View All Author Informationhttps://doi.org/10.1016/j.juro.2015.02.2414AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookTwitterLinked InEmail INTRODUCTION AND OBJECTIVES It is one of our major concerns to investigate the clinical implication of lymphovascular invasion (LVI) in transurethral resection of bladder tumor (TURBT) specimens (TUR-LVI) in clinical decision making in patients with bladder cancer. Immunohistochemistry (IHC) may improve LVI detection in small TUR specimens. We aimed to investigate the clinical significance of TUR-LVI for bladder cancer staging and compare the clinical values of IHC-detected LVI (IHC-LVI) with HE-detected LVI (HE-LVI). METHODS This study included 157 non-metastatic bladder cancer patients treated with radical cystectomy (RC) at our institution. A single pathologist with expertise in genitourinary malignancies evaluated all TURBT specimens and assessed the venous, lymphatic and lymphovascular invasions in HE and IHC stained specimens. Two IHC markers for lymphatic channels (D2-40) and endothelial cells (CD31) were used to clarify lymphatic (ly) and venous (v) invasions in IHC studies. The univariate and multivariate logistic regression analyses were used to identify preoperative factors correlated with extra-vesical disease (≥pT3) at RC.□ RESULTS Sixty-nine patients (44%) were diagnosed with ≥pT3 disease on RC specimens. HE-LVI was detected in 38 (24%) patients while IHC-LVI in 57 (36%). Twenty-six (46%) of the 57 patients with positive IHC-LVI was determined negative for HE-LVI, while 7 (18%) of the 38 patients with positive HE-LVI was determined negative by IHC. In univariate analyses, clinical T (cT) stage, tumor multifocality, hydronephrosis, and HE-LVI were significantly associated with ≥pT3 disease, but v and ly by both HE and IHC staining and IHC-LVI were not. In multivariate analyses, cT stage (p<0.001), hydronephrosis (p=0.002), and HE-LVI (p=0.025) were significant factors for the prediction of ≥pT3 disease. We developed a nomogram using these variables (Figure) and the area under the curve was 0.79. CONCLUSIONS cT stage, hydronephrosis, and HE-LVI were significant preoperative predictors for ≥pT3 disease at RC. Although IHC could detect more LVI in TURBT samples, it failed to be an independent factor in this setting. Additionally, detailed distinction between v and ly invasion status added no clinical value. © 2015 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 193Issue 4SApril 2015Page: e842 Advertisement Copyright & Permissions© 2015 by American Urological Association Education and Research, Inc.MetricsAuthor Information Tatsuo Gondo More articles by this author Jun Nakashima More articles by this author Rie Inoue More articles by this author Takeshi Hashimoto More articles by this author Yoshio Ohno More articles by this author Makoto Ohori More articles by this author Toshitaka Nagao More articles by this author Masaaki Tachibana More articles by this author Expand All Advertisement Advertisement PDF downloadLoading ..." @default.
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- W2026395409 title "PD41-06 CLINICAL VALUE OF IMMUNOHISTOCHEMICALLY DETECTED LYMPHOVASCULAR INVASION IN TRANSURETHRAL BLADDER TUMOR RESECTION SPECIMEN FOR BLADDER CANCER STAGING BEFORE RADICAL CYSTECTOMY" @default.
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