title: Contact allergic gastritis: an underdiagnosed entity?
abstract: Only a few cases of contact allergic gastritis in patients with nickel allergy have been reported. We report a case of probable contact-allergic gastritis in a 46-year-old woman. Clinical examination revealed lichenoid mucosal lesions of the gums adjacent to bridges and crowns that had been implanted several weeks back. Since implantation, the patient had suffered from gastrointestinal complaints (including stomach pain). Gastroscopy showed eosinophilic gastritis. Patch testing done under the diagnosis of contact allergic stomatitis showed positive reactions to: gold sodium thiosulphate; manganese (II) chloride; nickel (II) sulphate; palladium chloride; vanadium (III) chloride and zirconium (IV) chloride. The crowns and bridge contained gold, palladium and zirconium chloride, hence they were replaced by titan-based dentition. Shortly after replacing the artificial dentition, all gastrointestinal symptoms resolved spontaneously without further treatment. Delayed-type allergy against the components of artificial dentition seemed to be the cause of gastritis.
authors.affiliation: Department of Dermatology,  Saarland University Hospital, Homburg/Saar,  Germany.
authors.forename: Claudia
authors.initials: C
authors.lastname: Pföhler
authors.forename: Rebecca
authors.initials: R
authors.lastname: Körner
authors.forename: Thomas
authors.initials: T
authors.lastname: Vogt
authors.forename: Cornelia S L
authors.initials: CS
authors.lastname: Müller
mesh_terms: D017449:Dermatitis, Allergic Contact / Q000209:etiology*; D005260:Female; D005756:Gastritis / Q000139:chemically induced* / Q000150:complications / Q000175:diagnosis; D005773:Gastroscopy; D005891:Gingivitis / Q000139:chemically induced* / Q000150:complications / Q000175:diagnosis; D006047:Gold Alloys / Q000009:adverse effects*; D006801:Humans; D008875:Middle Aged; D010328:Patch Tests
chemical_list: D006047:Gold Alloys