Neuromyelitis optica spectrum disorder is an autoimmune disease which tends to have other coexisting autoimmune or connective tissue diseases. However, coexisting with ankylosing spondylitis is rare. Here, we report a 57-year-old man with concomitant autoantibodies against aquaporin 4-positive neuromyelitis optica spectrum disorder and HLA-B27-positive ankylosing spondylitis.
Keywords: ankylosing spondylitis; neuromyelitis optica.
© 2023 Tajrish Shohada hospital. Clinical Case Reports published by John Wiley & Sons Ltd.