Abstract Library

#2828 G3 Neuroendocrine Tumours and Carcinomas: Clinicopathological Features for Distinct Entities

Introduction: The 2019 WHO subclassified the grade 3 (G3) gastroenteropancreatic (GEP) neuroendocrine neoplasms (NEN) into neuroendocrine carcinoma (NEC) or tumors (G3 NET). Yet, few data exist on clinical and treatment profiles for G3 NET.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author: Taboada R

Authors: Taboada R, Claro L, Campos F, Felismino T, de Jesus V,

Keywords: neuroendocrine, high grade, clinicopathological, carcinoma, G3,

#2712 HORMONET: Study of Tamoxifen in Well Differentiated Neuroendocrine Tumors (NET) and Hormone Receptor Positive Expression

Introduction: We have shown immunohistochemistry (IHC) expression of estrogen (ER) and progesterone receptors (PR) in 20.8% and 18.8% of 96 NET patients (pts). An old clinical trial (Mortel C, 1984) suggested antitumor effects of estrogen/progesterone-directed therapies in NET. Yet the effects of an antiestrogen agent in NET pts whose tumor express ER and/or PR are unknown.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author: Riechelmann R

Authors: Riechelmann R, Donadio M, Felismino T, Fonseca de Jesus V, Mello C,

Keywords: neuroendocrine, estrogen, progesterone, clinical trial,