Source: Lungs; Creative Commons: http://commons.wikimedia.org/wiki/File:Thoracic_anatomy.jpg Esophagus; Creative Commons: https://commons.wikimedia.org/wiki/File:Tractus_intestinalis_esophagus.svg
Scar tissue on the liver most oftenly due to heavy alcohol consumption over time.
Cancer of the colon or rectum.
A disorder in which the intestine and other organs become inflamed. As a result a portion of the intestine may have to be removed.
A genetic disorder in which the pancreas doesn't produce enzymes necessary to digest and absorb fats.
A disorder in which chyme backs up in the esophagus due to the lower esophageal sphincter not closing properly.
A disease that causes inflammation of the liver and can lead to malfunctioning of the liver if left untreated.
A disorder in which the lactase enzyme is deficient so lactose cannot be digested and absorbed properly.