Zollinger–Ellison Syndrome

High-power view of gastric mucosa in a patient with Zollinger–Ellison syndrome. Note the large increase in the number of parietal cells.

High-power view of gastric mucosa in a patient with Zollinger–Ellison syndrome. Note the large increase in the number of parietal cells.

Source: Rosai: Surgical Pathology 9th edition