title: An uncommon cause of esophagitis. Answer to the clinical challenges and images in GI question: image 1: esophageal hyperkeratosis secondary to vitamin A deficiency.
authors.affiliation: Division of Pediatric Gastroenterology, Department of Pathology, University of Mississippi Medical Center, Jackson, Mississippi, USA.
authors.forename: Whitney
authors.initials: W
authors.lastname: Herring
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Nowicki
authors.forename: Jason K
authors.initials: JK
authors.lastname: Jones
mesh_terms: D002648:Child; D004941:Esophagitis / Q000188:drug therapy / Q000209:etiology* / Q000473:pathology; D004945:Esophagoscopy; D004947:Esophagus / Q000187:drug effects / Q000473:pathology*; D006801:Humans; D007642:Keratosis / Q000188:drug therapy / Q000209:etiology* / Q000473:pathology; D018887:Landau-Kleffner Syndrome / Q000150:complications*; D008297:Male; D009092:Mucous Membrane / Q000473:pathology; D014801:Vitamin A / Q000627:therapeutic use; D014802:Vitamin A Deficiency / Q000150:complications* / Q000188:drug therapy / Q000473:pathology; D014815:Vitamins / Q000627:therapeutic use
chemical_list: D014815:Vitamins; D014801:Vitamin A