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- Z -

• Zenker's Diverticulum

Pouches in the esophagus from increased pressure in and around the esophagus.



• Zollinger-Ellison Syndrome

A group of symptoms that occur when a tumor called a gastrinoma forms in the pancreas. The tumor, which may cause cancer, releases large amounts of the hormone gastrin. The gastrin causes too much acid in the duodenum, resulting in ulcers, bleeding, and perforation.