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We present a case of a 60-year-old male diagnosed with Zollinger-Ellison syndrome (ZES) after a protracted multicentric workup for chronic diarrhea and unexplained weight loss. ZES is intrinsically difficult to diagnose due to nonspecific symptoms, which are mimicked by other more frequent pathologies, such as peptic ulcer disease secondary to Helicobacter pylori or nonsteroidal anti-inflammatory drugs. The diagnostic challenge can be further complicated by patient noncompliance, resulting in delayed management and unnecessary health care. In our case report, the patient did not adhere to the care plan preceding endoscopy and failed to maintain communication with the treating doctor. As a result, crucial information was missing, and establishing the diagnosis of ZES took six months. Delay in appropriate management also contributed to poor disease course, heavy necrotic ulceration of the duodenum and proximal jejunum that was discovered on repeat endoscopy.

Delayed Management of Zollinger-Ellison Syndrome in a Noncompliant Patient