To confirm a diagnosis of celiac disease, a biopsy of the small intestine is examined to detect damage to the intestinal villi. However, given the invasive nature and cost of a biopsy, antibody tests are often used to identify those individuals with high probability of having celiac disease.
Autoimmune hepatitis is a disease in which the body's immune system attacks liver cells. This immune response causes inflammation of the liver, also called hepatitis. Researchers think a genetic factor may make some people more susceptible to autoimmune diseases.
The most common symptoms of autoimmune hepatitis are. 1  fatigue. 2  joint pain. 3  nausea. loss of appetite.  pain or discomfort over the 1  liver. skin rashes.  dark yellow 1  urine. light-colored 2  stools. jaundice, or yellowing of the skin and whites of the  eyes.