Reactive lymphoreticular hyperplasia of the stomach.
D001706:Biopsy; D002908:Chronic Disease; D003937:Diagnosis, Differential; D005260:Female; D005773:Gastroscopy / Q000379:methods; D006801:Humans; D006965:Hyperplasia / Q000175:diagnosis; D008223:Lymphoma / Q000473:pathology; D008297:Male; D008875:Middle Aged; D013270:Stomach / Q000473:pathology*; D013276:Stomach Ulcer / Q000473:pathology* / Q000601:surgery