Japanese Journal of Clinical Immunology
Online ISSN : 1349-7413
Print ISSN : 0911-4300
ISSN-L : 0911-4300
Case Report
Marked efficacy of adalimumab for secondary gastrointestinal amyloidosis accompanied with ankylosing spondylitis
Takeo ABENaoto AZUMATomoaki KONOHiroyuki HAOSeiichi HIROTAChie OGITAYuichi YOKOYAMATetsuya FURUKAWATakahiro YOSHIKAWATakuya HINOAtsushi SAITOAki NISHIOKAMasahiro SEKIGUCHIMasayasu KITANOSchinichiro TSUNODAKiyoshi MATSUIHajime SANO
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2015 Volume 38 Issue 6 Pages 473-479

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Abstract
  A 39-year-old man with seronegative rheumatoid arthritis which was refractory to methotrexate and prednisolone therapy complained of epigastralgia, melena and diarrhea. Diffuse mucosal damage was observed on endoscopic examination, and histological findings of the gastric and colonal mucosa showed AA type amyloidosis. He was diagnosed with ankylosing spondylitis (AS) on the basis of the clinical feature such as the limitation in range of motion of lumber spine, and sacroiliitis on MR imaging. Although digestive symptom ameliorated by fasting and antibiotic therapy, laboratory findings continued to reveal an elevation of serum C-reactive protein (CRP) value and arthritis worsened. However, after the initiation of the treatment with adalimumab (ADA), not only his manifestation but also serum levels of CRP became normalized promptly. As far as we could evaluated, follow-up colonoscopic examination showed normal mucosal findings and histologic examination proved that amyloid protein disappeared. Secondary gastrointestinal amyloidosis is ralely associated with AS. Therefore standard therapy is not established. This case might indicate an efficacy of ADA for secondary gastrointestinal amyloidosis accompanied with AS.
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© 2015 The Japan Society for Clinical Immunology
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