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squamocolumnar Z line |
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squamocolumnar Z line Endoscopy A zig-zag border seen by upper GI endoscopy which corresponds to the abrupt transition from stratified squamous or esophageal epithelium to columnar–gastric epithelium; the Z line's appearance is
due to the change from the multicelled layer of the esophagus, to the single cell layer of gastric mucosa in intimate contact with blood vessels. See Barrett's esophagus. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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