title: Pernicious anemia caused by Crohn's disease of the stomach.
abstract: A patient with granulomatous gastritis is described. Two years after the presentation of his gastric disease he developed pernicious anemia. Lack of intrinsic factor production secondary to Crohn's disease of the stomach is felt to be the cause of his Vitamin B12 malabsorption.
mesh_terms: D000328:Adult; D000752:Anemia, Pernicious / Q000097:blood / Q000209:etiology*; D003424:Crohn Disease / Q000150:complications; D005756:Gastritis / Q000150:complications* / Q000473:pathology; D006801:Humans; D007437:Intrinsic Factor / Q000097:blood; D008297:Male; D014805:Vitamin B 12 / Q000378:metabolism
chemical_list: D007437:Intrinsic Factor; D014805:Vitamin B 12