Abstract Library

#2935 Prior Surgical Resection and Ga-68-DOTANOC PET/CT Imaging-Based Parameters: Do These Impact Outcomes in Grade II Gastroentero-Pancreatic Neuroendocrine Tumors (GEP-NETs)

Introduction: Grade 2 GEP-NETs have inherent tumor heterogeneity seen with positive expression of somatostatin (SSTR) and glucose (GLUT) receptors. Prior surgical resection and imaging parameters on Ga-68 DOTANOC PET/C are well-established variable impacting prognosis in well-differentiated grade 1 NETs. Since the degree of differentiation is variable in Grade 2 NETs, these parameters have not been studied.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author: Puranik A

Authors: Puranik A, Agrawal A, Rangarajan V, Shrikhande S, Dev I,

Keywords: Grade 2, GEP-NET, DOTANOC, surgical resection,

#2283 Ultra-Deep Targeted Resequencing Reveals Recurrent DAXX and CYFIP2 Mutations and Implicates Novel Pathways in Pancreatic Neuroendocrine Tumors

Introduction: Recent studies in pancreatic neuroendocrine tumors have identified mutations in DAXX/ATRX, MEN1, and genes involved in the phosphoinositide-3-kinase/Akt/mammalian target of rapamycin (PI3K-Akt-mTOR) pathway. However, these studies focused on abundant mutations.

Conference: 15th Annual ENETSConcerence (2018)

Presenting Author: Vandamme T

Authors: Vandamme T, Beyens M, Van Camp G, Boons G, Hofland L,

Keywords: pancreatic neuroendocrine tumors, PNET, genetics, tumor heterogeneity, hotspot mutations,

#2162 Single Cell Copy Number Variation Analysis (CNV) of Circulating Tumor Cells (CTCs) in Neuroendocrine Tumor (NET) Patients

Introduction: The identification and characterization of CTCs as part of a minimally invasive “liquid biopsy” provides an opportunity to explore NET biology, identify therapeutic targets and investigate tumour heterogeneity.

Conference: 15th Annual ENETSConcerence (2018)

Presenting Author: Childs A

Authors: Childs A, Vesely C, Rizzo F, Ensell L, Lowe H,

Keywords: CTCs, tumor heterogeneity, CNV,

#961 Heterogeneity in the Ki-67 Index of Neuroendocrine Tumors

Introduction: Tumor heterogeneity due to tumor evolution is becoming more widely recognised. Neuroendocrine tumors (NET) are routinely graded using the Ki-67 index based on a single tumor location, however, this could lead to undergrading if the Ki-67 index is higher at the metastatic site.

Conference: 11th Annual ENETSConcerence (2014)

Presenting Author:

Authors: Miller H, Flora R, Drymousis P, Wasan H, Goldin R,

Keywords: tumor heterogeneity, Ki-67,