Abstract Library

#3089 Mixed Large and Small Cell Neuroendocrine Carcinoma of the Endometrium: A Case Report and Literature Review

Introduction: Neuroendocrine carcinoma (NEC) is an extremely rare subtype of endometrial cancer which is usually seen among perimenopausal or postmenopausal women. It runs an aggressive course and posts a clinical challenge due to limited treatment options available.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author: Cruz M

Authors: Cruz M, Uyboco J,

Keywords: neuroendocrine carcinoma, endometrium,

#3074 Medullary Thyroid Carcinoma and DIPNECH: An Unexpected Association

Introduction: Medullary thyroid carcinoma (MTC) is a neuroendocrine tumour of the C-cells of thyroid gland. Diffuse idiopathic pulmonary neuroendocrine cells hyperplasia (DIPNECH) is a rare condition, thought to be primarily a neuroendocrine proliferative process which can develop into carcinoid tumours.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author:

Authors: Lima Ferreira J, Marques B, Elvas A, Simões de Carvalho F, Fonseca A,

Keywords: medullary thyroid cancer, DIPNECH, neuroendocrine tumour, carcinoid tumour, pulmonary nodules,

#3062 The Splicing Factor CELF4 Is Dysregulated in Neuroendocrine Tumors, Where It Can Enhance Aggressiveness Features

Introduction: There is increasing evidence that alterations in alternative splicing are linked to key tumor features in different cancers. Besides mutations, dysregulation of the splicing machinery would represent the main underlying cause for these alterations. Indeed, splicing dysregulation is emerging as a novel, transversal cancer hallmark, due to its association with multiple dysfunctions in tumor cells.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author: Alors-Pérez E

Authors: Alors-Pérez E, Pedraza-Arévalo S, Vázquez-Borrego M, Blázquez-Encinas R, Herrera-Martínez A,

Keywords: PanNET, CELF4, splicing, aggressiveness, pituitary tumors,

#3053 The Splicing Machinery Is Dysregulated in Low Grade Pulmonary Neuroendocrine Tumors

Introduction: Alternative splicing dysregulation is increasingly regarded as a novel cancer hallmark influencing all key tumor features. We have shown that neuroendocrine tumors (NETs) overexpress aberrantly spliced variants of neuropeptides and receptors that increase tumor malignancy. More recently, we discovered that the splicing machinery is dysregulated in pituitary and pancreatic NETs. To date, the status of this machinery in low grade pulmonary NETs is largely unknown.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author: Blázquez-Encinas R

Authors: Blázquez-Encinas R, Caro M, Pedraza-Arévalo S, Alors-Pérez E, Herrera-Martínez A,

Keywords: low grade pulmonary NETs, splicing, splicing machinery, malignancy,

#3051 Epidemiology, Pathological and Clinical Features of 4307 Patients with Gastroenteropancreatic Neuroendocrine Neoplasms (GEP-NEN) of the Spanish Neuroendocrine Cancer Registry (R-GETNE)

Introduction: RGETNE national NEN Registry comprises 74 hospitals from all regions of Spain.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author:

Authors: Garcia Carbonero R, Jimenez-Fonseca P, Benavent M, Alonso V, Alonso T,

Keywords: GEP-NEN, tumor registry, survival, prognosis, epidemiology,