Abstract Library

#3884 Primary tumor resection followed by PRRT in the treatment of patients with metastatic neuroendocrine ileal cancer – Preliminary data from a retrospective single center study

Introduction: A low volume disease is an independent positive prognostic factor for the evaluation of response to peptides-radiolabelled-receptor-therapy (PRRT). Data from a previous study in patients with pancreatic-neuroendocrine-cancer (P-NET) have shown that resection of the primary tumor before PRRT improves response to therapy and increases progression-free survival (PFS).

Conference:

Presenting Author: Francesco M

Authors: Mattana F, Zuccotti G, Barone A, Muraglia L, Travaini L,

Keywords: neuroendocrine neoplasm, nuclear medicine, surgery, PRRT, GEP-NET, ileal neoplasm,

#3703 Impact of primary tumor resection and metastasectomy among gastroenteropancreatic neuroendocrine tumors with liver metastases only on survival

Introduction: The incidence of gastroenteropancreatic neuroendocrine tumors (GEP-NETs) is increasing globally, and the patients are often diagnosed with synchronous liver metastases. Despite recommendations for primary tumor resection (PTR) with or without liver resection (LR) in the patients, there are conflicting data for their impact on overall survival (OS).

Conference:

Presenting Author: Chen Q

Authors: Chen Q, Li K, Rhodin K, Bartholomew A, Lidsky M,

Keywords: Gastroenteropancreatic neuroendocrine tumor, Liver metastasis, Resection, Prognosis, National Cancer Database,

#3701 Primary tumor resection improves survival of gastrointestinal neuroendocrine carcinoma patients with non-resected liver metastases

Introduction: The role of primary tumor resection (PTR) in the survival of gastrointestinal neuroendocrine carcinoma (GI-NEC) patients with liver metastases only remains poorly defined.

Conference:

Presenting Author: Chen Q

Authors: Chen Q, Li K, Rhodin K, Masoud S, Lidsky M,

Keywords: gastrointestinal neuroendocrine carcinoma, liver metastasis, primary tumor resection, national cancer database,

#3465 Opposite treatment approach in two institutes identifies primary tumor resection to be associated with improved disease specific mortality in patients with stage IV small intestinal neuroendocrine tumors (SI-NET) vs watch-and-wait strategy

Introduction: SI-NET often present with metastatic disease. There is an ongoing debate whether or not to perform primary tumor resection (PTR) in stage IV SI-NET.

Conference:

Presenting Author: Levy S

Authors: Levy S, Arthur J, Banks M, Kok N, Fenwick S,

Keywords: SI-NET, surgical approach, stage 4, instrumental variable,

#3457 Relevant prognostic factors in patients with stage IV small intestine neuroendocrine neoplasms

Introduction: There are only few, but controversial data on the prognostic role of upfront primary tumor resection and mesenteric lymph node dissection (PTR) in patients with stage IV small intestinal neuroendocrine neoplasia (SI-NEN).

Conference:

Presenting Author:

Authors: Maurer E, Heinzel-Gutenbrunner M, Rinke A, Rütz J, Figiel J,

Keywords: stage 4 small intestine neuroendocrine neoplasm, primary tumor resection, survival, peptide receptor radionuclide therapy,