A Perplexing Case of Abdominal Pain That Led to the Diagnosis of Zollinger-Ellison Syndrome

<div>Pathology of pancreatic neuroendocrine tumor with positive staining for gastrin.</div>

Case Reports in Gastrointestinal Medicine

Figure 3: A Perplexing Case of Abdominal Pain That Led to the Diagnosis of Zollinger-Ellison Syndrome 