title: Images of the month: heterotopic gastric mucosa mimicking rectal neoplasm on colonoscopy.
mesh_terms: D002828:Choristoma / Q000175:diagnosis*; D003113:Colonoscopy; D003937:Diagnosis, Differential; D005753:Gastric Mucosa; D006801:Humans; D012002:Rectal Diseases / Q000175:diagnosis*; D012004:Rectal Neoplasms / Q000175:diagnosis*