Diagnosis of Association Ankylosing Spondylitis and Rheumatoid Arthritis: Case Report with Literature Review

Abstract

The probability of one patient has ankylosing spondylitis (AS) and rheumatoid arthritis (RA) is low. It is usually difficult to diagnose the association, indeed we require a careful diagnostic process and more tests are needed. A 21-year-old female patient with coexisting AS and RA was reported here. 9 months later, she developed peripheral polyarthritis, erosion changes on the radiography of Metatarso-phalangeal (MTP), rheumatoid factor and cyclic citrullinated peptide antibody (anti-CCP) were positives. Here, we describe the diagnostic process that we followed.