GI Tract Diagrams
Someone asked where to find GI tract diagrams so she could print one and take it to her doctor to have him show where her tumor had been... Here are some sources.
GI tract diagrams:
http://www.gistsupport.org/about-gist/what-is-gist.php
http://www.nlm.nih.gov/medlineplus/digestivesystem.html
GIST Support Wiki