24 Hour Urinary 5-Hydroxyindoleacetic Acid Levels in Patients with Non-Functioning Pancreatic Neuroendocrine Tumors

#2219

Introduction: The secretion of urinary 5-Hydroxyindoleacetic Acid (u5-HIAA) by non-functioning PNETs (NF-PNET) has rarely been reported, and the data on the association between u5-HIAA levels and disease burden is scant.

Aim(s): To assess u5-HIAA levels in patients with NF-PNETs.

Materials and methods: A retrospective analysis of a prospective study, including patients with gastro-entero-pancreatic NET, with biochemical biomarkers and imaging follow-up. Tumor burden was determined by measuring 68Ga-DOTATATE-avid tumor volume using a SUVmax threshold.

Conference: 15th Annual ENETSConcerence (2018)

Presenting Author: Tirosh A

Authors: Tirosh A, Papadakis G, Sadowsi S, Patel D, Nilubol N,

Keywords: 5-HIAA, PNET, Secretion, Biomarker,