Celiac is a chronic autoimmune disease caused by a reaction to gluten in food. The disease has genetic factors and in clinical practice, the manifestations are quite diverse, from no symptoms to faint symptoms or severe cases may have typical malabsorption symptoms such as chronic diarrhea, iron deficiency anemia, weight loss...

Kyoto - a new endoscopic classification system for gastritis. The Kyoto classification has introduced endoscopic signs associated with H. pylori infection. The Kyoto classification score is the sum of five endoscopic findings (atrophy, intestinal metaplasia, hypertrophic folds, nodules, and diffuse erythema with or without regular arrangement of RAC collecting venules) and ranges from 0 to 8.