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Updated: Aug 15, 2025

Application of Robot-assisted Pancreaticobiliary Junction Resection in Benign Duodenal Tumors
Published on: December 20, 2024
Recurrent Gastrointestinal Pseudo-obstruction Because of Well-Differentiated Duodenal Neuroendocrine Tumor
Ruchi Sharma1, Hammad Zafar1, Scott K Sherman2
1Department of Internal Medicine, University of Iowa Hospital and Carver College of Medicine, Iowa City, IA.
Abstract:
A 56-year-old man presented with recurrent gastrointestinal obstruction. Computed tomography showed fluid-filled, distended stomach, small intestine, and large intestine. Extensive workup including esophagogastroduodenoscopy, colonoscopy, magnetic resonance enterography, push enteroscopy, and video capsule enteroscopy showed no mechanical obstruction. Endoscopic ultrasound-guided biopsy of peripancreatic nodes detected on 18F-fluorodeoxyglucose positron emission tomography revealed a duodenal neuroendocrine tumor. The lesion showed intense uptake on gallium-68 DOTATOC positron emission tomography-computed tomography scan. The patient underwent surgical resection of the tumor with resolution of bowel obstruction events. He had elevated pancreatic polypeptide levels, which are known to delay gastric emptying and could explain his symptoms.
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