title: Urticarial vasculitis in the childhood with C2 hypocomplementenemia: a rare case.
abstract: We report a first case of hypocomplementemic urticarial vasculitis of C2 fraction in a child, with cutaneous manifestation only, with no reports in scientific literature.
authors.affiliation: Facultade de Medicina do ABC (FMABC), Santo André (SP), Brazil. E-mail: yipkeylachan@gmail.com.
authors.forename: Y
authors.initials: Y
authors.lastname: Keyla Chan
authors.affiliation: Facultade de Medicina do ABC (FMABC), Santo André (SP), Brazil.
authors.forename: R F J
authors.initials: RF
authors.lastname: Criado
authors.affiliation: Universidade de Sào Paulo (USP), São Paulo, Brazil.
authors.forename: P R
authors.initials: PR
authors.lastname: Criado
authors.affiliation: Facultade de Medicina do ABC (FMABC), Santo André (SP), Brazil.
authors.forename: C D A S
authors.initials: CD
authors.lastname: Machado
authors.affiliation: Facultade de Medicina do ABC (FMABC), Santo André (SP), Brazil.
authors.forename: C
authors.initials: C
authors.lastname: Speyer
mesh_terms: D002675:Child, Preschool; D020147:Coagulation Protein Disorders / Q000150:complications* / Q000503:physiopathology; D003175:Complement C2 / Q000172:deficiency*; D006801:Humans; D008297:Male; D018366:Vasculitis, Leukocytoclastic, Cutaneous / Q000150:complications* / Q000503:physiopathology
chemical_list: D003175:Complement C2
keywords: child; complement; urticaria; urticarial vasculitis