J.K. Fajar, R. Rahmadi, S. Prawitasari, P.A. Rahman
A 24-year-old woman was admitted to hospital for investigation of polyarthritis and pustular psoriasis. Application of the American College of Rheumatology/European League Against Rheumatism (ACR/EULAR) criteria established the diagnosis of rheumatoid arthritis (RA), and according to the Classification Criteria for Psoriatic Arthritis (CASPAR) score, the patient also met the criteria for psoriatic arthritis. Imaging studies, specifically hand X-ray and hand computed tomography (CT) showed subluxation at the metacarpophalangeal joints, bone erosion, juxta-articular osteopenia, fusiform soft tissue swelling, and boutonniere appearance consistent with RA. A comprehensive diagnostic approach, including assessment of the clinical features, and laboratory examination and imaging, is required to differentiate between RA and psoriatic arthritis. © Athens Medical Society.
Brawijaya Internal Medicine Research Center, Department of Internal Medicine, Faculty of Medicine, Universitas Brawijaya, Malang, Indonesia; Department of Dermatovenerology, Faculty of Medicine, Universitas Brawijaya, Malang, Indonesia; Division of Rheumatology, Department of Internal Medicine, Faculty of Medicine, Universitas Brawijaya, Malang, Indonesia
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