title: Delayed diagnosis of porphyria based on manifestations of systemic lupus erythematosus and ankylosing spondylitis.
abstract: In this case report, a patient with systemic lupus erythematosus and ankylosing spondylitis is presented, who was diagnosed with hereditary coproporphyria after 5 years of follow-up. Diagnostic difficulties and possible role of genetic background in the autoimmune response in patients with porphyria are briefly discussed.
authors.affiliation: Division of Rheumatology, Department of Internal Medicine, Eskişehir Osmangazi University Medical Faculty, Eskişehir, Turkey. ckorkmaz@ogu.edu.tr
authors.forename: Cengiz
authors.initials: C
authors.lastname: Korkmaz
mesh_terms: D000328:Adult; D000974:Antibodies, Antinuclear / Q000097:blood; D046349:Coproporphyria, Hereditary / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008180:Lupus Erythematosus, Systemic / Q000150:complications*; D013167:Spondylitis, Ankylosing / Q000150:complications*; D013997:Time Factors
chemical_list: D000974:Antibodies, Antinuclear