Endoscopy image of small bowel gastrointestinal stromal tumour, consent for public domain made by patient.
Original file: http://commons.wikimedia.org/wiki/File:Jejunal_GIST.JPG
Modifications: cropped and slight tweaks to colour / brightness
License: I, the copyright holder of this work, hereby publish it under the following licenses: Permission is granted 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. A copy of the license is included in the section entitled "GNU Free Documentation License".