A rare disorder of protein malabsorption.

Any disease of the intestine, including celiac disease (Gluten Sensitive Enteropathy).

An examination of the small intestine with an endoscope. The endoscope is inserted through the mouth and stomach into the small intestine.

An ostomy, or opening, into the intestines through the abdominal wall.

A substance (usually a protein) that speeds up, or catalyzes, a chemical reaction without being permanently altered or consumed. Enzymes carry out the thousands of chemical reactions that go on in a cell. Enzymes help… 

A type of blood test usually used to measure antibodies.

One of many kinds of cells that form the epithelium and absorb nutrients.

The inner and outer tissue covering digestive tract organs.

The part of an antigen to which an antibody binds.38

A disease in which the lining of the esophagus becomes infiltrated with a type of white blood cell called an eosinophil.