MP62-08 PROSTATE CANCER LYMPH NODE METASTASIS: HOW OFTEN IS CLOQUET’S NODE INVOLVED?

Abstract

You have accessJournal of UrologyProstate Cancer: Staging I (MP62)1 Apr 2020MP62-08 PROSTATE CANCER LYMPH NODE METASTASIS: HOW OFTEN IS CLOQUET’S NODE INVOLVED? Sarah E Apatov, Ines Rivero Belenchon*, Clauda Mercader Barrull, Natalia Picola Brau, Nicole Benfante, Samson Fine, and Karim A Touijer Sarah E ApatovSarah E Apatov More articles by this author , Ines Rivero Belenchon*Ines Rivero Belenchon* More articles by this author , Clauda Mercader BarrullClauda Mercader Barrull More articles by this author , Natalia Picola BrauNatalia Picola Brau More articles by this author , Nicole BenfanteNicole Benfante More articles by this author , Samson FineSamson Fine More articles by this author , and Karim A TouijerKarim A Touijer More articles by this author View All Author Informationhttps://doi.org/10.1097/JU.0000000000000937.08AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail Abstract INTRODUCTION AND OBJECTIVE: Located below the inguinal ligament and anterior to Cooper’s ligament, Cloquet’s node is easily accessible and commonly dissected during pelvic lymph node dissection for prostate cancer. We hypothesize that Cloquet’s node - the junction between the deep inguinal nodes and the external iliac chain – is not part of lymphatic metastatic spread of prostate cancer. METHODS: 100 consecutive high-risk prostate cancer patients underwent laparoscopic radical prostatectomy and bilateral extended pelvic lymph node dissection (PLND). During PLND, Cloquet’s node was dissected and submitted separately to pathology as right and left Cloquet’s node. Each lymph node retrieved was cut in 3 mm slices which were separately embedded in paraffin, stained with hematoxylin and eosin, and examined microscopically. RESULTS: The median PSA was 7.3 ng/mL (IQR: 4.8 – 12.8). 81% of the patients had biopsy grade group 4 or 5 and 10% had cT3 disease. 37% of the patients had lymph node metastasis. Cloquet’s node was involved in one patient only (1%), this patient had six other lymph nodes as well. CONCLUSIONS: Cloquet’s node is rarely involved in prostate cancer. Even in high-risk prostate cancer, Cloquet’s node removal should not be the principal focus of the lymph node dissection. Source of Funding: No funding © 2020 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 203Issue Supplement 4April 2020Page: e948-e948 Advertisement Copyright & Permissions© 2020 by American Urological Association Education and Research, Inc.MetricsAuthor Information Sarah E Apatov More articles by this author Ines Rivero Belenchon* More articles by this author Clauda Mercader Barrull More articles by this author Natalia Picola Brau More articles by this author Nicole Benfante More articles by this author Samson Fine More articles by this author Karim A Touijer More articles by this author Expand All Advertisement PDF downloadLoading ...