Abstract Library

#3863 Survival and prognostic factors in appendiceal neuroendocrine tumors (ANET) and goblet cell carcinoma (aGCC)

Introduction: Appendiceal goblet cell carcinomas (aGCC) present with overlapping features of appendiceal neuroendocrine neoplasms (ANET) and adenocarcinomas. A previous study found that ANET with peritoneal metastases have a 5-year survival rate of 7%. Recent studies show that ANET rarely metastasizes, contrary to aGCC. The latest WHO classification excluded aGCC from the group of NETs and classified it as appendiceal adenocarcinomas.

Conference:

Presenting Author: Dijke K

Authors: Dijke K, Levy S, van den Berg J, Tesselaar M,

Keywords: Goblet cell carcinoma, Appendiceal neuroendocrine tumor, Survival,

#3527 Appendiceal neuroendocrine neoplasms diagnosed during pregnancy: A case series and review of the literature

Introduction: Although appendicitis occurs in approximately 1:1000 pregnancies, appendiceal neuroendocrine neoplasm (ANEN) diagnosis during pregnancy is very rare. Data on presentation, treatment and prognosis is scarce.

Conference:

Presenting Author: Twito O

Authors: Twito O, Akirov A, Rosenblum R, Herzberg D, Oleinikov K,

Keywords: Appendix, neuroendocrine neoplasm, pregnancy,

#3385 Review of appendiceal neuroendocrine neoplasms and pathological features that influence decision for oncological right hemicolectomy

Introduction: Appendiceal neuroendocrine neoplasms (NEN) are typically an incidental finding with 80% diagnosed post-appendectomy in the setting of acute appendicitis. While ENETS recommends that patients with appendiceal NEN >2cm undergo right hemicolectomy (RH) there is uncertainty in how to manage those measuring 1-2cm.

Conference:

Presenting Author:

Authors: Beauchamp K, Thuillier R, Swan K, Cotter M, O'Shea D,

Keywords: neuroendocrine, appendix, oncology, right hemicolectomy,

#2976 Incidence of Appendiceal NEN and Adherence to Pathological Classification Rules and Treatment Guidelines: Results of the Population Based Cancer Registry in Belgium

Introduction: Classification of appendiceal neuroendocrine neoplasms (aNEN) changed significantly over the years and treatment algorithm remains a matter of debate.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author: Ribeiro S

Authors: Ribeiro S, De Maeyer F, De Man M, Carton S, Cuyle P,

Keywords: appendiceal NET, incidence in community, subtypes/WHO grade, management decisions,

#2953 Temporal Trends in Incidence, Presentation and Work-Up of Neuroendocrine Neoplasms of the Appendix

Introduction: Although temporal trends in incidence and prognosis of neuroendocrine neoplasms have been described in the literature, data regarding trends in Appendiceal Neuroendocrine Neoplasms (ANENs) is limited.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author: Twito O

Authors: Twito O, Klein N, Paran H, Avital S, Kravtsov V,

Keywords: appendix, neuroendocrine neoplasms, hemicolectomy, prognosis, temporal trends,