title: Prominent pruritic periumbilical papules.
authors.forename: R T
authors.initials: RT
authors.lastname: Kuwahara
authors.forename: R
authors.initials: R
authors.lastname: Skinner
mesh_terms: D002648:Child; D017449:Dermatitis, Allergic Contact / Q000175:diagnosis* / Q000276:immunology; D003876:Dermatitis, Atopic / Q000175:diagnosis* / Q000276:immunology; D003937:Diagnosis, Differential; D006801:Humans; D006968:Hypersensitivity, Delayed / Q000139:chemically induced / Q000276:immunology*; D009532:Nickel / Q000009:adverse effects*; D011537:Pruritus / Q000209:etiology*; D014472:Umbilicus / Q000473:pathology
chemical_list: D009532:Nickel