Columnar-lined esophagus: Definitions

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Abstract

Recognition of a columnar-lined esophagus requires precise criteria by which to delimit the esophagus and the stomach. Endoscopically recognizable landmarks such as the squamocolumnar junction (SCJ or Z-line) can be used to identify structures at the gastroesophageal junction. Once the SCJ is located proximal to the gastroesophageal junction, a columnar-lined segment of esophagus is visible. If biopsy specimens from the columnar-lined segment show specialized intestinal metaplasia, then the patient has Barrett's esophagus (BE), and the extent of the columnar lining determines if it is short- or long-segment BE.

Original languageEnglish (US)
Pages (from-to)1-13
Number of pages13
JournalChest Surgery Clinics of North America
Volume12
Issue number1
DOIs
Publication statusPublished - 2002

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ASJC Scopus subject areas

  • Pulmonary and Respiratory Medicine

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