Esophagus - histology slide

H&E stain of normal biopsy of esophagus showing stratified squamous epithelium.

Histology image courtesy of Wikpedia. Released into public domain on permission of patient -- I, the creator of this work, hereby grant the permission to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. Subject to disclaimers.