title: Sarcoidosis-tuberculosis association: a case report.
abstract: The association of sarcoidosis and tuberculosis is rare and, its differentiation is sometimes very difficult. We report the case of a young man who presented with type III sarcoidosis complicated by pulmonary tuberculosis within 17 months of the diagnosis, leading to a fatal outcome. A change in antimycobacterial antigen complex A60 immunoglobulin G (IgG) titres, as seen in our case, may be helpful in differentiating between the two diseases.
authors.affiliation: Dept of Pneumology, Centro Hospitalar de V.N. Gaia, Portugal.
authors.forename: J C
authors.initials: JC
authors.lastname: Winck
authors.forename: L
authors.initials: L
authors.lastname: Delgado
authors.forename: T
authors.initials: T
authors.lastname: Shiang
authors.forename: A
authors.initials: A
authors.lastname: Carvalho
authors.forename: F F
authors.initials: FF
authors.lastname: Rodrigues
mesh_terms: D000328:Adult; D000942:Antigens, Bacterial / Q000276:immunology; D015415:Biomarkers; D003937:Diagnosis, Differential; D017809:Fatal Outcome; D006801:Humans; D007074:Immunoglobulin G / Q000032:analysis; D008168:Lung / Q000000981:diagnostic imaging / Q000473:pathology; D008297:Male; D008562:Membrane Glycoproteins / Q000276:immunology; D009169:Mycobacterium tuberculosis / Q000276:immunology; D017565:Sarcoidosis, Pulmonary / Q000150:complications / Q000175:diagnosis* / Q000276:immunology; D014057:Tomography, X-Ray Computed; D014397:Tuberculosis, Pulmonary / Q000150:complications / Q000175:diagnosis* / Q000276:immunology
chemical_list: D000942:Antigens, Bacterial; D015415:Biomarkers; D007074:Immunoglobulin G; D008562:Membrane Glycoproteins; C055539:mycobacterial A60 antigen