Abstract Library

#4566 Predictive value of high-risk histopathological- and molecular criteria for lymph node metastasis in appendiceal neuroendocrine tumours

Introduction: Appendiceal neuroendocrine tumours (aNET) are rare neoplasms for which consensus is needed for follow-up and additional treatment. To unravel the factors behind aNET which showed lymph node metastasis (LNM) in additional right hemicolectomy (RH), we evaluated high-risk histopathological parameters in aNETs and studied molecular parameters.

Conference:

Presenting Author: Bremer B

Authors: Bremer B, Kyriskozoglou V, El Moumni M, Heideman D, Walenkamp-Hageman A,

Keywords: Appendix NET, High-risk histopathological criteria, Serotonin, Driver mutation, Right Hemicolectomy,

#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,

#4016 Factors influencing emergency admissions in patients with neuroendocrine neoplasms (NEN) in England 2016-2017

Introduction: Diagnostic delays in neuroendocrine neoplasms (NEN) are common, with NENs presenting as emergencies in a subset of cases. Emergency presentations (EP) may cause poor outcomes and should be avoided.

Conference:

Presenting Author: El Asmar M

Authors: El Asmar M, Mortagy M, Chandrakumaran K, Srirajaskanthan R, Ramage J,

Keywords: Neuroendocrine tumor, Emergency admission, Survival analysis,

#4001 Sex differences in survival of neuroendocrine neoplasms (NENs): Comparative study of patients from National Cancer Registration and Analysis Service (NCRAS, UK) and Surveillance, Epidemiology, and End Results (SEER, US) databases

Introduction: It has been reported that sex is an important predictor of survival of NEN patients using data from the UK NCRAS database. The same statistical methods have not been applied to US SEER data.

Conference:

Presenting Author:

Authors: Mortagy M, El Asmar M, Chandrakumaran K, Ramage J,

Keywords: SEER, NCRAS, Neuroendocrine tumor, RMST, Cox regression, Survival analysis, Sex differences, RMTL, Kaplan Meier,

#4000 Prediction of survival for patients with neuroendocrine neoplasms (NENs) using multivariable cox regression and survival nomograms: Data from National Cancer Registration and Analysis Service (NCRAS, UK) Database

Introduction: Multiple nomograms for predicting survival of NENs from surveillance, epidemiology, and end results (SEER) database have been published. To the best of our knowledge, no survival nomogram has been published from NCRAS database

Conference:

Presenting Author:

Authors: Mortagy M, El Asmar M, Chandrakumaran K, Ramage J,

Keywords: SEER, NCRAS, Nomogram, Survival analysis, Cox regression, Interactive web application, neuroendocrine neoplasm,