Extranodal extension of lymph node metastasis influences recurrence in prostate cancer: A systematic review and meta-Analysis

Nicola Veronese, Matteo Fassan, Matteo Brunelli, Joost L. Boormans, Liang Cheng, Nicola Veronese, Alessia Nottegar, Claudio Luchini, Antonio Porcaro, Paola Lucato, Brendon Stubbs, Aldo Scarpa, Aldo Scarpa, Marco Solmi, Achim Fleischmann

Risultato della ricerca: Articlepeer review

27 Citazioni (Scopus)


The extranodal extension (ENE) of nodal metastasis involves the extension of neoplastic cells through the lymph node capsule into the perinodal adipose tissue. This morphological feature has recently been indicated as an important prognostic factor in various cancer types, but its role in prostate cancer is still unclear. We aimed to clarify it, performing the first meta-Analysis on this issue, comparing prognostic parameters in surgically treated, node-positive prostate cancer patients with (ENE+) vs. without (ENE-) ENE. Data were summarized using risk ratios (RRs) for number of deaths/recurrences and hazard ratios (HRs), with 95% confidence intervals (CI), for the time-dependent risk related to ENE positivity. Six studies followed-up 1,113 patients with N1 prostate cancer (658 ENE+ vs. 455 ENE-) for a median of 83 months. The presence of ENE was associated with a significantly higher risk of biochemical recurrence (RR = 1.15; 95%CI: 1.03-1.28; I2 = 0%; HR = 1.40, 95%CI: 1.12-1.74; I2 = 0%) and "global" (biochemical recurrence and distant metastasis) recurrence (RR = 1.15; 95%CI: 1.04-1.28; I2 = 0%; HR = 1.41, 95%CI: 1.14-1.74; I2 = 0%). ENE emerged as a potential prognostic moderator, earmarking a subgroup of patients at higher risk of recurrence. It may be considered for the prognostic stratification of metastatic patients. New possible therapeutic approaches may explore more in depth this prognostic parameter. © 2017 The Author(s).
Lingua originaleEnglish
Numero di pagine7
RivistaScientific Reports
Stato di pubblicazionePublished - 2017

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