Abstract library

202 results for "WHO classification".
#2939 Prognostic Evaluation for Gastroenteropancreatic NEC: AJCC or ENETS Staging Classification or Others?
Introduction: For poorly-differentiated gastroenteropancreatic neuroendocrine carcinoma (GEP-NEC), American Joint Committee on Cancer (AJCC) recommends to use a classification different from that for well-differentiated neuroendocrine tumor. However, this is not adopted by European Neuroendocrine Tumor Society (ENETS) staging classification.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Pathology - grading, staging
Presenting Author: Professor Jie Chen
Authors: Zhang Y, Chen L, Lin Z, Zhang T, ...
#2831 Immunohistochemical Profile of Digestive Neuroendocrine Neoplasms: A Retrospective Analysis in a Single Algerian Institution
Introduction: Neuroendocrine Noplasms (NEN) are rare tumours, but their incidence is clearly increasing in our country due to the improvement of diagnostic means, in particular the generalization of immunohistochemical techniques. The digestive location represents more than 70% of the cases. The anatomopathological study enables to classify the NEN in different prognostic grades according to the degree of differentiation, mitotic index and Ki67.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Epidemiology/Natural history/Prognosis - Registries, nationwide and regional surveys
Presenting Author: Djihed Belabdi
#2852 Diagnostic Accuracy of Endoscopic Ultrasound-Fine Needle Aspiration (EUS-FNA) in the Evaluation of Pancreatic Neuroendocrine Neoplasms (PNEN) Grading
Introduction: Prognosis of pNENs depends on staging and grading, based on the cyto-histological Ki67 labelling; EUS-FNA is considered the gold standard technique to obtain it in pre-therapeutic setting
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Pathology - grading, staging
Presenting Author: Matteo Tacelli
#2922 Clinicopathological Characteristics of Borderline Pulmonary Neuroendocrine Neoplasms
Introduction: According to the WHO 2015 classification pulmonary neuroendocrine neoplasms (NENs) are subdivided in carcinoids and neuroendocrine carcinoma (small cell lung carcinoma and large cell neuroendocrine carcinoma (LCNEC)), based on the presence of necrosis and mitotic index (MI). However, in some NENs a discrepancy is observed between grade of differentiation and proliferation rate.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Pathology - grading, staging
Presenting Author: MD Bregtje Hermans
#2951 Analysis of Discordance between Biopsy Grade and Surgical Pathology Grade in Resected PanNEN Patients
Introduction: In PanNEN cases, treatment strategies are decided by tumor localization, volume and grade. In unresectable or metastatic cases, tumor grade is determined by biopsy specimen obtained from EUS-FNA and diagnostic accuracy of biopsy according to WHO classification 2017 is important for decision making of treatment.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Pathology - grading, staging
Presenting Author: Kenzo Nakano
Authors: Nakano K, Masui T, Yogo A, Uchida Y, ...
#2968 Incidence of Rectal NEN and Adherence to Pathology Classification Rules and Treatment Guidelines: Results of the Population Based Cancer Registry in Belgium
Introduction: Classification of rectal NEN (rNEN) changed significantly over the years.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Epidemiology/Natural history/Prognosis - Registries, nationwide and regional surveys
Presenting Author: Karen Geboes
#2976 Incidence of Appendiceal NEN and Adherence to Pathological Classification Rules and Treatment Guidelines: Results of the Population Based Cancer Registry in Belgium
Introduction: Classification of appendiceal neuroendocrine neoplasms (aNEN) changed significantly over the years and treatment algorithm remains a matter of debate.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Epidemiology/Natural history/Prognosis - Registries, nationwide and regional surveys
Presenting Author: Karen Geboes
#2991 Gastroenteropancreatic (GEP) Neuroendocrine Neoplasia G3 (NEN G3) According to 2019 WHO Classification: A Comprehensive Clinicopathological Characterization Including Mismatch Repair (MMR) Proteins, PDL1 Expression and KRAS/BRAF Status
Introduction: In the 2019 WHO FOR NEN’S classification NETG3 have been distinguished from poorly differentiated neuroendocrine carcinoma (NEC). They are heterogeneous group concerning prognosis and treatment benefit.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Biomarkers
Presenting Author: MD Gonzalo Ruiz
Keywords: G3 NEN, PD-L1, KRAS, BIOMARKERS
#3005 Comparison between Tang and WHO 5th Edition Grade Classification for Goblet Cell Adenocarcinomas
Introduction: Appendiceal GCAs (previously Goblet Cell Carcinoids) are composed of cells with secretory phenotypes. Several grading systems to predict behaviour are available (e.g.Tang). The latest WHO 5th edition adopted a grading system similar to colon adenocarcinomas.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Pathology - grading, staging
Presenting Author: MD, PhD Jorge Barriuso
#2936 Mutational Landscape of 109 High-Grade Gastroenteropancreatic Neuroendocrine Neoplasms G3
Introduction: Gastroenteropancreatic (GEP) neuroendocrine neoplasms (NEN) G3 are rare with a poor outcome. Molecular data for GEP NEN G3 is limited and the 2019 WHO classification is based on morphology and proliferation rate.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Basic Science - Genetics, epigenetics, miRNAs, Omics
Presenting Author: MSc Andreas Venizelos