Abstract Library

#4280 Predictive and prognostic nomogram models for liver metastasis in colorectal neuroendocrine neoplasms: A large population study

Introduction: The incidence of patients with colorectal neuroendocrine neoplasms (CRNENs) is continuously increasing. Most patients have distant metastases when diagnosed. Liver metastasis (LM) is the most common type of distant metastasis, and the prognosis is poor once LM occurs. However, there is still a lack of effective models for predicting the risk and prognosis of LM in CRNENs.

Conference:

Presenting Author: Song L

Authors: Lei X, Su Y, Lei R, Zhang D, Liu Z,

Keywords: colorectal neuroendocrine neoplasm, liver metastasis, overall survival, nomogram, SEER, prognostic factor, risk factor,

#3948 Molecular typing and mutational characterisation of rectal neuroendocrine neoplasms

Introduction: Rectal neuroendocrine neoplasms (NENs) are rare neoplasms with limited understanding of its genomic alterations and molecular typing.

Conference:

Presenting Author:

Authors: Duan X, Yin F,

Keywords: rectal neuroendocrine neoplasms, genomic alterations, molecular typing, signaling pathway, DDR mutant genes,

#3667 Outcome of endoscopic submucosal dissection for rectal neuroendocrine neoplasms – A multicentre study

Introduction: Recent guidelines recommend advanced endoscopic resection techniques, such as Endoscopic Submucosal Dissection (ESD), for the treatment of rectal neuroendocrine neoplasms (R-NENs) under 15mm due to high rate of positive margins at Endoscopic Mucosal Resection (EMR).

Conference:

Presenting Author: Rimondi A

Authors: Rimondi A, Despott E, Lemmers A, Chacchi-Cahuin R, Lazaridis N,

Keywords: ESD, R-NENs, endoscopy,

#3615 Clinicopathological features, treatment, and prognostic analysis of patients with gastrointestinal neuroendocrine neoplasms – A nation-wide clinical epidemiological study in China

Introduction: Nation-wide clinical epidemiological study on gastrointestinal neuroendocrine neoplasms (GI-NEN) in China is rare.

Conference:

Presenting Author: Yang H

Authors: Yang H, Xiao-Kun W, Su-Sheng S, Li-Ming J, Yihebali C,

Keywords: gastric neuroendocrine neoplasms, colorectal neuroendocrine neoplasms, Clinicopathological Features, Treatment,

#3300 Clinicopathological characteristics of 83 lymph node negative rectal neuroendocrine tumors

Introduction: Rectal neuroendocrine neoplasms (R-NENs) are rare tumors originating from enteric neuroendocrine cells. In recent decades, the incidence and prevalence of R-NENs have increased year by year. According to the US SEER data, the incidence rate of R-NENs is 1.10 per 100,000 cases, and the prevalence has risen from 1/1 100,000 cases in 193 to 14 per 100,000 in 2012.

Conference: 18th Annual ENETS Concerence (2021)

Presenting Author: Han D

Authors: Han D, Su W, Li J, Wang C, Qi Z,

Keywords: rectal neuroendocrine tumor, lymph node-negative, clinicopathological characteristics, treatment, prognosis,