Abstract Library

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ENETS Abstract Search

#2743 Mimics of Neuroendocrine Neoplasms Identified in a Single Consultation Center between 2009 and 2019

Introduction: Immunohistochemical expression of synaptophysin (SYN), chromogranin (CgA) and cytokeratin are essential for diagnosis of NENs. Non-NENs, however, may occasionally also express NE-markers and cytokeratin and cause diagnostic difficulties.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author: Kasajim A

Authors: Kasajima A, Konukiewitz B, Schlitter A, Weichert W, Klöppel G,

Keywords: pitfalls, pathology diagnosis,

#2198 PD-L1 Expression and Its Clinical Relevance in Neuroendocrine Tumors of the Lung

Introduction: Immune checkpoint regulation seems to be crucial for nonneuroendocrine lung cancer patients. However, little is known in lung neuroendocrine tumors.

Conference: 15th Annual ENETSConcerence (2018)

Presenting Author: Atsuko K

Authors: Kasajima A, Ishikawa Y, Iwata A, Steiger K, Oka N,

Keywords: Lung NEN, PD-L1, Prognosis,

#1668 Classification of Lung Neuroendocrine Neoplasms (Lung-NENs) According to WHO 2010 for Gastroenteropancreatic NENs (GEP-NENs) Has Prognostic Relevance and Includes Lung-NETs G3

Introduction: The classification of lung neuroendocrine neoplasms (Lung-NENs) according to the WHO classification 2010 for GEP-NENs, including a provisional category for Lung-NET G3 with Ki67 >20%, may have prognostic implications.

Conference: 14th Annual ENETSConcerence (2017)

Presenting Author: Kasajima A

Authors: Kasajima A, Oka N, Ishida H, Sakurada A, Kameya T,

Keywords: Lung NEN,

#1666 Prognosis and Incidence in Pancreatic and Gastrointestinal Neuroendocrine Neoplasms with Emphasis on “NET G3”: An Analysis of 198 Cases from Japan

Introduction: Prognostic impact of well differentiated pancreatic neuroendocrine neoplasms (PanNENs) with a Ki67 >20%, provisionally called NET G3, needs to be validated and compared to poorly differentiated neuroendocrine carcinomas (NECs). Moreover, the frequency of NET G3 among gastrointestinal NENs (GI-NENs) has so far not been studied.

Conference: 14th Annual ENETSConcerence (2017)

Presenting Author: Kasajima A

Authors: Kasajima A, Tachibana T, Ishida H, Yazdani S, Konukiewitz B,

Keywords: NET G3, GEP-NEN, GI-NET,

#1286 A Comparative Analysis of Ki67 Index of the High Grade Neuroendocrine Neoplasms Arising in the Gastrointestinal Tract and the Pancreas

Introduction: A common classification has been used for NET in gastrointestinal tract (GI-NET) and pancreas (P-NET), but heterogeneity has been reported in high grade tumors; well-differentiated G3 (WDG3), poorly differentiated NEC (NEC), and mixed adenoneuroendocrine carcinoma (MANEC).

Conference: 13th Annual ENETSConcerence (2016)

Presenting Author:

Authors: Kasajima A, Ishida H, Tachibana T, Yazdani S, Sasano H,

Keywords: high grade tumors, morphological differentiation, ki-67 index,