title: Morphological aspects of duodenitis.
mesh_terms: D004382:Duodenitis / Q000473:pathology*; D004386:Duodenum / Q000473:pathology; D004848:Epithelium / Q000473:pathology; D006801:Humans; D006965:Hyperplasia / Q000473:pathology; D008679:Metaplasia / Q000473:pathology; D009504:Neutrophils