{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,21]],"date-time":"2026-10-21T16:00:48Z","timestamp":1792598448310,"version":"4.5.0"},"reference-count":27,"publisher":"SAGE Publications","issue":"3","license":[{"start":{"date-parts":[[2026,2,17]],"date-time":"2026-02-17T00:00:00Z","timestamp":1771286400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},{"start":{"date-parts":[[2026,2,17]],"date-time":"2026-02-17T00:00:00Z","timestamp":1771286400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["HSS Journal\u00ae: The Musculoskeletal Journal of Hospital for Special Surgery"],"published-print":{"date-parts":[[2026,6]]},"abstract":"<jats:sec>\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>\u201cRice body\u201d describes the gross appearance of hyperplastic synovial villi that develop into rice-like fibrinous loose bodies. Rice bodies have historically been associated with tuberculosis and inflammatory arthritis, but no retrospective studies have correlated their magnetic resonance imaging (MRI) appearances to histology or to the underlying diagnoses.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Purpose:<\/jats:title>\n                    <jats:p>We sought to correlate the appearance on MRI of rice body-like particles with histology and describe the associated diagnoses.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>We conducted a retrospective cross-sectional study of MRI reports in our institutional imaging database in which a radiologist described \u201crice bodies.\u201d The search was performed by a keyword search for \u201crice,\u201d ultimately yielding a total of 100 patients between June 1992 and July 2022. Patients were excluded if their MRI was not available for retrospective review or if there was insufficient follow-up to establish a clear underlying diagnosis. Cases were included if the MRI finding of rice bodies was confirmed by retrospective review of the images and there was clinical follow-up or surgery with histology establishing the underlying diagnosis.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>Of the 52 patients who met inclusion criteria and were enrolled in our retrospective study, 37% (19\/52) had prior surgery, 73% (14\/19) being arthroplasty. Diagnoses associated with rice body-like particles on MRI were inflammatory arthritis (52%; 27\/52), infection (25%; 13\/52), synovial chondromatosis (8%; 4\/52), osteoarthritis (6%; 3\/52), bursitis (6%; 3\/52), and adverse local tissue reaction (4%; 2\/52). Among 13 infections, only 1 was mycobacterial while 46% (6\/13) were staphylococcal and 31% (4\/13) were culture-negative. In the presence of arthroplasty, rice body-like particles were associated with infection in 71% (10\/14), followed by adverse local tissue reaction (14%; 2\/14), 46% (24\/52) underwent surgery after MRI, and 45% (10\/22) had rice bodies confirmed on histology.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>Our retrospective findings suggest that rice body-like synovial particles on MRI are not specific to tuberculosis and inflammatory arthritis. Other diagnoses may also be considered, particularly nonmycobacterial infection when there is an arthroplasty.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Level of Evidence:<\/jats:title>\n                    <jats:p>Level IV: retrospective cross-sectional study.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/15563316251413271","type":"journal-article","created":{"date-parts":[[2026,2,17]],"date-time":"2026-02-17T10:58:16Z","timestamp":1771325896000},"page":"229-236","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":3,"title":["\u201cRice Body\u201d-Like Synovial Particles on Magnetic Resonance Imaging: What Is the Spectrum of Diagnoses?"],"prefix":"10.1177","volume":"22","author":[{"given":"Hoiwan","family":"Cheung","sequence":"first","affiliation":[{"name":"Department of Radiology and Imaging, Hospital for Special Surgery, New York, NY, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thomas W.","family":"Bauer","sequence":"additional","affiliation":[{"name":"Department of Pathology and Laboratory Medicine, Hospital for Special Surgery, New York, NY, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2236-6524","authenticated-orcid":false,"given":"Yoshimi","family":"Endo","sequence":"additional","affiliation":[{"name":"Department of Radiology and Imaging, Hospital for Special Surgery, New York, NY, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2026,2,17]]},"reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00256-020-03465-1"},{"key":"e_1_3_2_3_2","article-title":"Rice Body formation within a peri-articular shoulder mass","volume":"8","author":"Edison MN","year":"2016","unstructured":"Edison MN, Caram A, Flores M, et al. Rice Body formation within a peri-articular shoulder mass. Cureus. 2016;8:e718.","journal-title":"Cureus"},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.1007\/s002560100412"},{"key":"e_1_3_2_5_2","doi-asserted-by":"crossref","unstructured":"Ramirez DC Ren R Burge AJ et al. Exuberant rice body formation associated with adverse local tissue reaction after hip resurfacing arthroplasty: a case report and review of the literature. JBJS Case Connect. 2023;13:e0524. https:\/\/doi.org\/10.2106\/JBJS.CC.22.00524","DOI":"10.2106\/JBJS.CC.22.00524"},{"key":"e_1_3_2_6_2","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMicm2118312"},{"key":"e_1_3_2_7_2","doi-asserted-by":"publisher","DOI":"10.1007\/BF02800232"},{"key":"e_1_3_2_8_2","doi-asserted-by":"publisher","DOI":"10.1177\/230949900601400221"},{"key":"e_1_3_2_9_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.reuma.2017.08.003"},{"key":"e_1_3_2_10_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijscr.2016.08.021"},{"key":"e_1_3_2_11_2","doi-asserted-by":"crossref","unstructured":"Jeevannavar SS Baindoor P. \u201cRice bodies in the knee\u201d: classic tuberculosis of the knee. BMJ Case Rep. 2014;2014:bcr2013202975. https:\/\/doi.org\/10.1136\/bcr-2013-202975","DOI":"10.1136\/bcr-2013-202975"},{"key":"e_1_3_2_12_2","first-page":"57","article-title":"Subdeltoid bursa tuberculosis with rice bodies formation: case report and review of literature","volume":"4","author":"Pimprikar MV","year":"2014","unstructured":"Pimprikar MV, Kekatpure AL. Subdeltoid bursa tuberculosis with rice bodies formation: case report and review of literature. 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