Abstract Library

#4621 Clinical presentation and outcomes of sporadic neuroendocrine neoplasms in young adults: International multicentre analysis

Introduction: Most neuroendocrine neoplasms (NEN) are sporadic. Early disease onset has been increasingly observed in NEN.

Conference:

Presenting Author: Malczewska-Herman A

Authors: Malczewska-Herman A, Pavel M, Rinke A, Holmager P, Opalinska M,

Keywords: neuroendocrine neoplasm, sporadic, young adults, prognosis, survival,

#4441 Gastric neuroendocrine neoplasms in younger patients: A retrospective single-centre study

Introduction: Gastric neuroendocrine neoplasms (gNENs) are rare neoplasms arising from stomach enterochromaffin-like (ECL) cells. Type I gNENs are the most common type, typically indolent and arising in the context of chronic atrophic gastritis (CAG). While type I gNENs are generally diagnosed in pts over 50, their occurrence in younger pts raises concern about the onset of CAG-related complications at an earlier age, potentially affecting tumour growth and clinical outcomes. Young-oriented studies on type I gNETs are still lacking in literature.

Conference:

Presenting Author:

Authors: Romano E, Rinzivillo M, Marasco M, Dell' Unto E, Esposito G,

Keywords: Gastric neuroendocrine neoplasm, Young adults, Chronic Atrophic Gastritis,

#4236 Do metastatic appendiceal NETs ever develop metachronously after appendectomy or right hemicolectomy?

Introduction: Appendiceal NETs are typically detected incidentally during appendectomy. A recent study reported no cases of metachronous metastases among patients (pts) with primary tumors

Conference:

Presenting Author: Al-Toubah T

Authors: Al-Toubah T, Haider M, Strosberg J,

Keywords: appendiceal net, appendix net, neuroendocrine tumor, right hemicolectomy, appendectomy,

#4030 Neuroendocrine tumors in pediatrics and young adults

Introduction: Neuroendocrine tumors (NETs) are rare and heterogeneous neoplasms with different origins, biology, hormone secretion, and genetic mutations. An increase in the presentation of NETs has been observed in

Conference:

Presenting Author:

Authors: González-Devia D, Andrade-Andrade P, Segovia-Gómez J, Florez-Romero A, Lopez-Panqueva R,

Keywords: Neuroendocrine Tumor, Neuroendocrine Neoplasm, Young people, Epidemiology, Neuroendocrine carcinoma,

#2816 Germline Variants in Cancer Predisposing Genes in Young Adults with Neuroendocrine Tumors

Introduction: Advances in genomics have enabled the recognition of new cancer predisposing genes (CPG). There are few studies of CPG in neuroendocrine tumors (NET).

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author: Riechelmann R

Authors: Riechelmann R, de Paula C, Donadio M, Barros M, Formiga M,

Keywords: hereditary syndrome, neuroendocrine tumors, germline variants,