DISEASE AND ESOPHAGITIS, controlled with protonpump inhibitors during the last 5 years, was admitted to our hospital for evaluation with suspected Zollinger–Ellison syndrome (ZES). The basal acid output was 24 mEq/hr and fasting serum gastrin concentration 1874 pg/mL. On abdominal ultrasonography and magnetic resonance imaging a 15-mm juxta-duodenal pathologic lymph node (LN) of the anterior pancreaticoduodenal artery was detected and no liver metastases. The endoscopic ultrasonography with contrast did not find the primary tumor. Endoscopic fineneedle aspiration cytology with Ki67 proliferation index and Chromogranin A immunohistochemistry from the juxta-duodenal LN confirmed the diagnosis of well-differentiated neuroendocrine carcinoma. Somatostatin receptor scintigraphy was not available. Abdominal exploration, inspection, palpation after Kocher maneuver, and intraoperative ultrasonography only identified but the 15-mm juxta-duodenal LN. Indocyanine-green (ICG) 0.1 mg/kg was administered intravenously, with near-infrared fluorescence (NIRF) visualization (NIRF-800 probe, ArteMIS Handheld System, Quest Medical Imaging BV, Wieringerwerf, the Netherlands) of the duodenum and pancreas. The absolute values of