Abstract Library

#4118 Adverse events after endoscopic ultrasound-guided fine-needle aspiration and fine-needle biopsy in pancreatic neuroendocrine tumors: A systematic review

Introduction: Pathological analysis of pancreatic neuroendocrine tumors (pNET) is essential for predicting tumor behaviour and patient management. Although endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) is the established practice for retrieving tissue, fine-needle biopsy (EUS-FNB) offers possibilities for additional analyses including tumor grading. This systematic review provides a comprehensive evaluation of EUS-FNA and EUS-FNB-related adverse events in pNET.

Conference:

Presenting Author: Chen J

Authors: Chen J, Verschuur A, Abdelmonem A, Dreijerink K, Engelsman A,

Keywords: pancreatic neuroendocrine tumor, EUS-FNA, EUS-FNB, adverse events, systematic review,

#3586 Grading diagnostic accuracy of EUS Tissue Acquisition in pancreatic neuroendocrine tumors: A systematic review and meta-analysis

Introduction: Pancreatic neuroendocrine neoplasms (PanNENs), are a form of neoplasms arising from cells of the endocrine and nervous systems. Grading (G) is one of the most important decisional factor for therapy as is associated with prognosis, overall survival and disease free survival decrease. Endoscopic ultrasound fine needle-aspiration/biopsy (EUS-FNA/B) is the gold standard for diagnosing PanNENs and Ki67 evaluation, but data regarding accuracy and concordance with post-surgical histological examination are scanty and heterogeneous.

Conference:

Presenting Author:

Authors: Tacelli M, Bina N, Crinò S, Facciorusso A, Barresi L,

Keywords: endoscopic ultrasound, net, ki67, who, misclassification,

#3341 A rare case of oligometastatic thymic carcinoid

Introduction: Primary thymic neuroendocrine tumors (NETs) are a rare type of cancer which have a propensity to local or distant spread to nodes, lung, and bone. Treatment consists of a combination of surgery, SACT and radiotherapy, depending on the stage.

Conference: 18th Annual ENETS Concerence (2021)

Presenting Author: Cooper J

Authors: Cooper J, Jethwa D, Zen Y, Prachalis A, Taylor B,

Keywords: thymic carcinoid, oligometastatic disease,

#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 ENETSConcerence (2020)

Presenting Author:

Authors: Nakano K, Masui T, Yogo A, Uchida Y, Nagai K,

Keywords: PanNEN, WHO classification 2017, EUS-FNA, Ki-67, biopsy, surgical pathology, discordance,

#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 ENETSConcerence (2020)

Presenting Author: Tacelli M

Authors: Tacelli M, Petrone M, Capurso G, Rossi G, Archibugi L,

Keywords: Pancreatic neuroendocrine neoplasms, Grading, EUS-FNA, Endoscopic ultrasound-Fine Needle Aspiration, Ki-67, WHO, misclassification,