Expanding the WHO 2017 Classification to Gastrointestinal Tumors: Real-World Data from the R-GETNE Registry Abstract #2299

Introduction: The update of the WHO 2017 classification of pancreatic neuroendocrine tumors (NETs) introduces the distinction between NET & NEC G3, based on histological differentiation. However, little is known about the possibility of extending this concept to non-pancreatic NETs.
Aim(s): This analysis sought to assess the extension of the WHO 2017 classification to non-pancreatic NETs.
Materials and methods: Patients come from the R-GETNE registry. Survival was performed using Kaplan-Meier method. The additive effect of histological differentiation (well vs. poorly differentiated) and the Ki-67% index were evaluated by Cox regression, adjusted for confounding covariates (age, sex, TNM), and stratified by tumor location.
Conference: 15th Annual ENETS conference 2018 (2018)
Category: Pathology - grading, staging
Presenting Author: PhD Paula Jimenez-Fonseca

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