Abstract Library

#4456 Characteristics and clinical outcomes after endoscopic or surgical resection of localised sporadic type III gastric NETs: A national study from the French Group of Endocrine Tumors and ENDOCAN-RENATEN network

Introduction: Type III gastric neuroendocrine tumours (gNETs) are rare indolent tumours with increasing incidence. Endoscopic resection has recently been described to be a safe strategy to remove small, localised type III gNETs.

Conference:

Presenting Author: Perrier M

Authors: Perrier M, Lefort R, Do Cao C, Hautefeuille V, Wallenhorst T,

Keywords: neuroendocrine neoplasm, stomach, endoscopy, surgery, carcinoid,

#4027 Prognostic impact of molecular signatures in pancreatic metastatic neuroendocrine tumors (PRODETEN)

Introduction: Pancreatic neuroendocrine neoplasms (PNENs) are an heterogenous group of tumors. This heterogeneity is not explained by the main known prognostic factors (extension, evolution slope and Ki67 index). New molecular biomarkers (ARX, ATRX, DAXX, menin, PDX1) seem promising in non-metastatic PNENs.

Conference:

Presenting Author: de Mestier L

Authors: Pokossy Epee J, Cros J, Cadiot G, Do Cao C, Hautefeuille V,

Keywords: pancreas, neuroendocrine, prognostic, ATRX, daxx, arx, pdx1, Super Learner, menin, biomarker,

#3814 Intra-individual comparison of 68Ga-DOTATATE PET/CT and PET/MR

Introduction: Somatostatin receptor (SSTR) PET is a cornerstone of modern NET management and is used for (re)staging and PRRT selection. Next to PET/CT, hybrid PET/MR is now available for hybrid imaging of NETs.

Conference:

Presenting Author:

Authors: Ahmadi Bidakhvidi N, Lens G, Vandecaveye V, Grauwels S, Deckers W,

Keywords: 68Ga-DOTATATE, PET/CT, PET/MR,

#3732 Urine 5-HIAA levels and quality-of-life in neuroendocrine neoplasia – Is there an association?

Introduction: Patients with neuroendocrine neoplasia (NEN) experience psychological distress related to secreting tumors. 5-hydroxyindoleacetic acid (5-HIAA) is a metabolite of serotonin, an important secretory product in carcinoid syndrome.

Conference:

Presenting Author:

Authors: Chaudhry R, White B, Chandrakumaran K, Vincent R, Srirajaskanthan R,

Keywords: neuroendocrine neoplasm, biomarker, 5-HIAA, Health-related quality of life (HRQL),

#3609 Interest of systematic resection of the visible scar, after incomplete endoscopic resection of rectal neuroendocrine tumors

Introduction: Rectal Neuroendocrine tumors (r-NET) can often be misidentified as diminutive polyps, leading to inappropriate resection technique. When the initial resection is not R0, the persistence of a local residue could lead to a disease recurrence.

Conference:

Presenting Author:

Authors: Cheminel L, Wallenhorst T, Lepilliez V, Jacques J, Abou Ali E,

Keywords: rectal neuroendocrine tumor, incomplete resection, endoscopy, salvage resection,