title: Chronic relapsing urticaria confined to injection sites of upper arms.
abstract: New ongoing urticarial lesions confined to former injection sites of vaccination and allergy immunotherapy were observed in an 8-year-old boy. This finding can be best explained as an isotopic response phenomenon.
authors.affiliation: Department of Pediatrics, Hochgebirgsklinik, Davos, Switzerland.
authors.forename: Sylvia
authors.initials: S
authors.lastname: Fröhlich
authors.forename: Christian
authors.initials: C
authors.lastname: Geidel
authors.forename: Roger
authors.initials: R
authors.lastname: Lauener
authors.forename: Johannes
authors.initials: J
authors.lastname: Ring
authors.forename: Matthias
authors.initials: M
authors.lastname: Möhrenschlager
mesh_terms: D000982:Antipruritics / Q000627:therapeutic use; D001132:Arm; D002648:Child; D002908:Chronic Disease; D004802:Eosinophilia / Q000188:drug therapy / Q000209:etiology* / Q000276:immunology; D006633:Histamine Antagonists / Q000627:therapeutic use; D006801:Humans; D006967:Hypersensitivity / Q000628:therapy; D007073:Immunoglobulin E / Q000097:blood / Q000276:immunology; D007167:Immunotherapy / Q000009:adverse effects*; D007267:Injections / Q000009:adverse effects; D008297:Male; D009000:Monocytes / Q000276:immunology; D012008:Recurrence; D016896:Treatment Outcome; D014581:Urticaria / Q000188:drug therapy / Q000209:etiology* / Q000276:immunology; D014611:Vaccination / Q000009:adverse effects*
chemical_list: D000982:Antipruritics; D006633:Histamine Antagonists; D007073:Immunoglobulin E