SOURCE AND SCOPEThis Guideline is an official statement of the EuropeanSociety of Gastrointestinal Endoscopy (ESGE), the European Helicobacter and Microbiota Study Group (EHMSG),the European Society of Pathology (ESP), and the Sociedade Portuguesa de Endoscopia Digestiva (SPED). Basedon new evidence, it makes recommendations on the diagnostic assessment and management of individuals withatrophic gastritis, intestinal metaplasia and dysplasia ofthe stomach, updating the 2012 MAPS guideline.