Multiple extra-articular synovial cysts complicated with rheumatoid arthritis

Yohei KirinoDepartment of Internal Medicine and Clinical Immunology, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236-0004, Japan

Atsushi IhataDepartment of Internal Medicine and Clinical Immunology, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236-0004, Japan

Kazuya ShizukuishiDepartment of Radiology, Yokohama City University Graduate School of Medicine, Yokohama, Japan

Maasa HamaDepartment of Internal Medicine and Clinical Immunology, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236-0004, Japan

Kaoru TakaseDepartment of Internal Medicine and Clinical Immunology, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236-0004, Japan;Yokohama City University Medical Center, Center for Rheumatic Diseases, Yokohama, Japan

Akiko SudaDepartment of Internal Medicine and Clinical Immunology, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236-0004, Japan

Atsuhisa UedaDepartment of Internal Medicine and Clinical Immunology, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236-0004, Japan

Shigeru OhnoYokohama City University Medical Center, Center for Rheumatic Diseases, Yokohama, Japan

Mitsuhiro TakenoDepartment of Internal Medicine and Clinical Immunology, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236-0004, Japan

Yoshiaki IshigatsuboDepartment of Internal Medicine and Clinical Immunology, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236-0004, JapanCorrespondence[email protected]

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Abstract

Multiple extra-articular synovial cysts (MESC) are rarely complicated with various rheumatic diseases. We here first report a rheumatoid arthritis (RA) patient with MESC, which were extensively analyzed by a series of imaging techniques including fluorine-18-2-fluoro-d-glucose positron emission tomography (¹⁸F-FDG-PET), magnetic resonance imaging (MRI), and ultrasonography. FDG uptakes in joint lesions with MESC were much higher than those reported in typical lesions of RA, suggesting that marked joint inflammation is implicated in the development of MESC.

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Multiple extra-articular synovial cysts complicated with rheumatoid arthritis

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Multiple extra-articular synovial cysts complicated with rheumatoid arthritis

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