Investigation on Gastrointestinal Tract: A Review

Abstract

The gastrointestinal (GI) tract is composed of organs and tissues that have diverse forms and functions. It includes the esophagus, stomach, small intestine, large intestine, colon, rectum, biliary tract, gallbladder, liver, and pancreas. Despite the rapid proliferation of technology for the diagnosis of digestive diseases, the patient history and physical examination still hold central roles. When combined with a thorough patient history and physical examination, diagnostic procedures are essential in the evaluation of GI disorders. This review describes the most commonly used tools available in clinical practice to evaluate patients with GI diseases.