{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,22]],"date-time":"2026-10-22T18:38:20Z","timestamp":1792694300709,"version":"4.5.0"},"reference-count":25,"publisher":"SAGE Publications","issue":"6","license":[{"start":{"date-parts":[[2026,3,31]],"date-time":"2026-03-31T00:00:00Z","timestamp":1774915200000},"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":["Int J Surg Pathol"],"published-print":{"date-parts":[[2026,9]]},"abstract":"<jats:p>Immunoglobulin G4-related disease (IgG4-RD) is a systemic fibroinflammatory disorder that commonly affects multiple organs and may be misdiagnosed when presenting at atypical sites. We report an example of IgG4-RD involving the uterus and abdominopelvic lymph nodes and review the literature to clarify clinical, pathological and laboratory features. A 51-year-old female patient presented with prolonged menstruation and underwent PET\/CT that revealed hypermetabolic masses in the uterus and multiple abdominopelvic lymph nodes, initially suggesting malignancy. She underwent a total hysterectomy and lymph node biopsy. Histopathology showed storiform fibrosis, obliterative phlebitis and dense lymphoplasmacytic infiltrates with abundant IgG4-positive plasma cells. Serum IgG4 and IgG levels were markedly elevated, supporting the diagnosis of IgG4-RD. Postoperative therapy with a regimen comprising dexamethasone, cyclophosphamide and bortezomib resulted in a substantial reduction in serum IgG4 levels, indicating effective disease management. This case report emphasizes the need to consider IgG4-RD in unusual anatomical locations, to enhance clinical awareness, and to apply comprehensive diagnostic criteria to improve patient outcomes.<\/jats:p>","DOI":"10.1177\/10668969261433178","type":"journal-article","created":{"date-parts":[[2026,4,1]],"date-time":"2026-04-01T05:15:23Z","timestamp":1775020523000},"page":"1579-1585","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Clinicopathological Characteristics of IgG4-Related Disease Involving Uterus and Abdominopelvic Lymph Nodes: A Case Report"],"prefix":"10.1177","volume":"34","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1306-6140","authenticated-orcid":false,"given":"Gong","family":"Qingyun","sequence":"first","affiliation":[{"name":"Shantou Central 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