{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,1]],"date-time":"2026-02-01T21:34:32Z","timestamp":1769981672998,"version":"3.49.0"},"reference-count":17,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2026,1,15]],"date-time":"2026-01-15T00:00:00Z","timestamp":1768435200000},"content-version":"vor","delay-in-days":14,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Immunity Inflam &amp;amp; Disease"],"published-print":{"date-parts":[[2026,1]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Chronic expanding hematoma is defined as a progressively enlarging soft tissue mass persisting beyond 1 month, typically resulting from prior trauma or surgical procedures. Although the condition is rare, its occurrence within deep musculature\u2014particularly with bilateral involvement of the gluteus maximus\u2014is exceedingly uncommon. No previously published English\u2010language reports were identified describing bilateral gluteus maximus hematomas associated with gluteal muscle contracture (GMC).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Case Report<\/jats:title>\n                    <jats:p>This report describes a 29\u2010year\u2010old male presenting with bilateral chronic expanding hematomas involving the gluteus maximus muscles, accompanied by clinical features consistent with GMC.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Chronic expanding hematoma should be considered a potential underlying etiology in individuals presenting with GMC, particularly when involving deep gluteal musculature.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/iid3.70336","type":"journal-article","created":{"date-parts":[[2026,1,15]],"date-time":"2026-01-15T11:44:52Z","timestamp":1768477492000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Bilateral Chronic Expanding Hematomas of the Gluteus Maximus Presenting With Gluteal Muscle Contracture: A Case Report"],"prefix":"10.1002","volume":"14","author":[{"given":"Xi\u2010Qing","family":"Pan","sequence":"first","affiliation":[{"name":"Department of Joint Surgery Third Hospital of Shijiazhuang Shijiazhuang Hebei China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0001-7532-6035","authenticated-orcid":false,"given":"Jin\u2010Hui","family":"Liu","sequence":"additional","affiliation":[{"name":"Department of Joint Surgery Third Hospital of Shijiazhuang Shijiazhuang Hebei China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jiang\u2010Li","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Joint Surgery Third Hospital of Shijiazhuang Shijiazhuang Hebei China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ya\u2010Ya","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Joint Surgery Third Hospital of Shijiazhuang Shijiazhuang Hebei China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jian\u2010Yong","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Joint Surgery Third Hospital of Shijiazhuang Shijiazhuang Hebei China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lei","family":"Shu","sequence":"additional","affiliation":[{"name":"Department of Joint Surgery Third Hospital of Shijiazhuang Shijiazhuang Hebei China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wei","family":"Zhao","sequence":"additional","affiliation":[{"name":"Department of Joint Surgery Third Hospital of Shijiazhuang Shijiazhuang Hebei China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2026,1,15]]},"reference":[{"issue":"6","key":"e_1_2_19_2_1","first-page":"909","article-title":"Fibrosis of the Gluteus Maximus as a Cause of Snapping Hip. 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