title: Perforating granuloma annulare mimicking papulonecrotic tuberculid.
abstract: A case is reported of a patient presenting lymph node tuberculosis and cutaneous lesions resembling papulonecrotic tuberculid, but histologically compatible with perforating granuloma annulare and which responded satisfactorily to antituberculous therapy. This is probably one of the first reports of the association of perforating granuloma annulare and tuberculosis, and it is important therefore to highlight the relevance of this disorder in the differential diagnosis of papulonecrotic tuberculid and to raise the hypothesis that this entity should also be considered to be a variant of tuberculid.
authors.affiliation: Universidade Federal de São Paulo, Department of Dermatology, São PauloSP, Brazil.
authors.forename: Amanda Regio
authors.initials: AR
authors.lastname: Pereira
authors.affiliation: Universidade Federal de São Paulo, Department of Dermatology, São PauloSP, Brazil.
authors.forename: Mariana Bellini
authors.initials: MB
authors.lastname: Vieira
authors.affiliation: Universidade Federal de São Paulo, Department of Dermatology, São PauloSP, Brazil.
authors.forename: Marina Pinhas Ariza
authors.initials: MP
authors.lastname: Monteiro
authors.affiliation: Universidade Federal de São Paulo, Department of Dermatology and Pathology, São PauloSP, Brazil.
authors.forename: Milvia Maria Simões e Silva
authors.initials: MM
authors.lastname: Enokihara
authors.affiliation: Universidade Federal de São Paulo, Department of Pathology, São PauloSP, Brazil.
authors.forename: Nilceo Schwery
authors.initials: NS
authors.lastname: Michalany
authors.affiliation: Universidade Federal de São Paulo, Department of Dermatology, São PauloSP, Brazil.
authors.forename: Ediléia
authors.initials: E
authors.lastname: Bagatin
authors.affiliation: Universidade Federal de São Paulo, Department of Dermatology, São PauloSP, Brazil.
authors.forename: Karime Marques
authors.initials: KM
authors.lastname: Hassun
mesh_terms: D000293:Adolescent; D044963:Biopsy, Fine-Needle; D003937:Diagnosis, Differential; D005260:Female; D016460:Granuloma Annulare / Q000473:pathology*; D006801:Humans; D009336:Necrosis; D014382:Tuberculosis, Cutaneous / Q000473:pathology*; D014388:Tuberculosis, Lymph Node / Q000473:pathology*