THE MERCK MANUAL: The Merck Manual of Diagnosis and Therapymultimedia

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  • Esophageal Cancer
  • Barrett Esophagus

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    Barrett Esophagus

    Most esophageal adenocarcinomas arise from Barrett esophagus. Barrett esophagus is replacement of normal squamous epithelium of the distal esophagus with metaplastic columnar epithelium during the healing phase of acute esophagitis. In this image, red-appearing bands of metaplastic epithelium can be seen extending proximally.

    Image provided by David M. Martin, MD.