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Case Report
Geode of the Femur: An Uncommon Manifestation Potentially Reflecting the Pathogenesis of
Rheumatoid Arthritis
WONUK LEE, MICHAEL R. TERK, BING HU, ELAYNE K. GARBER, and MICHAEL H. WEISMAN ABSTRACT. Geodes are noted frequently in rheumatoid arthritis (RA), but large geodes of the femur are uncommon. We describe a patient with RA and a large geode in his femur; histological findings were consistent with a rheumatoid nodule and chronically inflamed synovium. We review the literature of large femoral geodes and what this particular manifestation may reflect about the pathogenesis of RA. (First Release Oct 15 2006; J Rheumatol 2006;33:2541–4) Key Indexing Terms:
RHEUMATOID ARTHRITIS From the Division of Rheumatology, Department of Radiology, and Department of Pathology, Cedars-Sinai Medical Center, Los Angeles, California, USA. W. Lee, MD, Fellow, Division of Rheumatology; M.R. Terk, MD, Chief, Musculoskeletal Imaging; B. Hu, MD, Department of Pathology; E.K. Garber, MD; M.H. Weisman, MD, Chief, Division of Rheumatology. Address reprint requests to Dr. M.H. Weisman, Division of Rheumatology, Cedars-Sinai Medical Center, 8700 Beverly Blvd., B-131, Los Angeles, CA 90048. E-mail: Michael.weisman@cshs.org Accepted for publication July 7, 2006.
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