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Case Reports
. 2023 Feb 13;15(2):e34952.
doi: 10.7759/cureus.34952. eCollection 2023 Feb.

Appearance of Ankylosing Spondylitis in a Middle-Aged Female Patient With a Long History of Rheumatoid Arthritis

Ryuichi Ohta  1 , Chiaki Sano  2
Affiliations
Case Reports

Appearance of Ankylosing Spondylitis in a Middle-Aged Female Patient With a Long History of Rheumatoid Arthritis

Ryuichi Ohta et al. Cureus. .

Abstract

Ankylosing spondylitis (AS) is a chronic inflammatory disease of the axial bones, primarily affecting the spine. AS is classified as spondyloarthritis because it affects the spine and other joints. AS has several presentations and, in some cases, can be insidious, making it difficult to diagnose. We encountered a patient on long-term follow-up for rheumatoid arthritis with an appearance of AS. This case suggests that patients with long-term rheumatoid arthritis can develop AS during follow-up and that the seropositivity of rheumatoid factors and anti-cyclic citrullinated peptide antibodies cannot rule out AS. Therefore, the possibility of AS should be considered, even in patients diagnosed with rheumatoid arthritis.

Keywords: ankylosing spondylitis; axial spondyloarthritis; female; general medicine; rheumatoid arthritis; rural hospital.

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Conflict of interest statement

The authors have declared that no competing interests exist.

Figures

Figure 1
Figure 1. Pelvic magnetic resonance imaging (short inversion time inversion recovery) showing a high-intensity lesion on the joints, indicating the presence of sacroiliac joints inflammation (white arrows)
See this image and copyright information in PMC

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