Primary malignant melanoma of the esophagus(PMME)is a malignant tumor which occurs in the melanin cells of esophageal mucosal epithelial basal layer.PMME is a r
Endoscopy plays a key role in the diagnosis and treatment of patients with inflammatory bowel disease(IBD).Colonoscopy has been traditionally used in the diagno
Crohn’s disease(CD)is a multifactorial potentially debilitating disease.It has a variable disease course,but the majority of patients eventually develop penetr
Helicobacter pylori(H.pylori)infection is the main pathogenic factor for upper digestive tract organic diseases.In addition to direct cytotoxic and proinflammat