title: Erythema elevatum diutinum coexisting with ankylosing spondylitis.
abstract: A 43-year-old woman presented to our hospital with the complaint of a reddish-purple rash on the extensor sides of her forearms. She had been diagnosed with ankylosing spondylitis 7 years ago. On physical examination, reddish-purple nodules were detected on the pretibial areas of both legs and extensor sides of both hands and forearms. Neutrophil, eosinophil, lymphocyte, and mixed-type leukocyte infiltration and erythrocyte extravasation were observed in skin biopsy. Erythema elevatum diutinum (EED) was diagnosed. For treatment, sulphasalazine, colchicine, and diclofenac were started. After 3 months of treatment, the lesions were healed. To the best of our knowledge, this is the first report of EED coexisting with ankylosing spondylitis.
authors.affiliation: Department of Rheumatology, Çukurova University Faculty of Medicine, Adana, Turkey.
authors.forename: Fatih
authors.initials: F
authors.lastname: Yıldız
authors.affiliation: Department of Dermatology, Sütcü İmam University Faculty of Medicine, Kahramanmaraş, Turkey.
authors.forename: Tuğba
authors.initials: T
authors.lastname: Karakaş
authors.affiliation: Department of Pathology, Çukurova University Faculty of Medicine, Adana, Turkey.
authors.forename: Arbil
authors.initials: A
authors.lastname: Açıkalın
authors.affiliation: Department of Rheumatology, Çukurova University Faculty of Medicine, Adana, Turkey.
authors.forename: Didem Arslan
authors.initials: DA
authors.lastname: Taş
authors.affiliation: Department of Rheumatology, Çukurova University Faculty of Medicine, Adana, Turkey.
authors.forename: Eren
authors.initials: E
authors.lastname: Erken
keywords: Ankylosing spondylitis; colchicine; erythema; leukocytoclastic vasculitis; sulphasalazine