{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,4]],"date-time":"2026-11-04T17:42:04Z","timestamp":1793814124038,"version":"4.6.1"},"reference-count":8,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2015,7,31]],"date-time":"2015-07-31T00:00:00Z","timestamp":1438300800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/100004328","name":"Genentech","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100004328","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Int J of Rheum Dis"],"published-print":{"date-parts":[[2018,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Granulomatosis with polyangiitis (<jats:styled-content style=\"fixed-case\">GPA<\/jats:styled-content>; formerly Wegener's) can present with clinical and histopathological features similar to those of immunoglobulin\u2010G4 related disease (IgG4\u2010<jats:styled-content style=\"fixed-case\">RD<\/jats:styled-content>), a recently described fibro\u2010inflammatory condition. The ability of these two distinct entities to mimic each other closely creates significant pitfalls in diagnosis. We present a unique case in which <jats:styled-content style=\"fixed-case\">GPA<\/jats:styled-content> presented as a peri\u2010aortic fibrotic mass in the retroperitoneum. The patient's other clinical features also overlapped with classic IgG4\u2010<jats:styled-content style=\"fixed-case\">RD<\/jats:styled-content> disease manifestations, but the histopathology in two organs and the serological data confirmed the diagnosis of <jats:styled-content style=\"fixed-case\">GPA<\/jats:styled-content>. Rigorous histopathological review remains the gold standard for the diagnosis of <jats:styled-content style=\"fixed-case\">GPA<\/jats:styled-content> and the distinction of this entity from IgG4\u2010<jats:styled-content style=\"fixed-case\">RD<\/jats:styled-content> and other mimickers.<\/jats:p>","DOI":"10.1111\/1756-185x.12687","type":"journal-article","created":{"date-parts":[[2015,7,31]],"date-time":"2015-07-31T10:48:57Z","timestamp":1438339737000},"page":"885-889","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["Medical mirroring: granulomatosis with polyangiitis (formerly Wegener's) mimicking immunoglobulin\u2010G4 related disease"],"prefix":"10.1111","volume":"21","author":[{"given":"Prashant","family":"Kaushik","sequence":"first","affiliation":[{"name":"Albany Stratton Veterans Affairs Medical Center (VAMC) Albany New York USA"},{"name":"Albany Medical College Albany New York USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"John H.","family":"Stone","sequence":"additional","affiliation":[{"name":"Harvard Medical School Massachusetts General Hospital Boston Massachusetts USA"},{"name":"Clinical Rheumatology Massachusetts General Hospital Boston Massachusetts USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"James T.","family":"Anderson","sequence":"additional","affiliation":[{"name":"Albany Medical College Albany New York USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shaifali","family":"Dugar","sequence":"additional","affiliation":[{"name":"Albany Medical College Albany New York USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Roy","family":"Mathew","sequence":"additional","affiliation":[{"name":"Albany Stratton Veterans Affairs Medical Center (VAMC) Albany New York USA"},{"name":"Albany Medical College Albany New York USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Boris","family":"Nikolic","sequence":"additional","affiliation":[{"name":"Albany Stratton Veterans Affairs Medical Center (VAMC) Albany New York USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Raina","family":"Patel","sequence":"additional","affiliation":[{"name":"Albany Stratton Veterans Affairs Medical Center (VAMC) Albany New York USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2015,7,31]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.7326\/0003-4819-116-6-488"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(14)60720-0"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1038\/modpathol.2012.72"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1155\/2012\/121702"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMra1104650"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1002\/art.39132"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMoa0909905"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.1136\/annrheumdis-2014-206605"}],"container-title":["International Journal of Rheumatic Diseases"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1111%2F1756-185X.12687","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1111%2F1756-185X.12687","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/1756-185X.12687","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,9,24]],"date-time":"2023-09-24T15:16:40Z","timestamp":1695568600000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/1756-185X.12687"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2015,7,31]]},"references-count":8,"journal-issue":{"issue":"4","published-print":{"date-parts":[[2018,4]]}},"alternative-id":["10.1111\/1756-185X.12687"],"URL":"https:\/\/doi.org\/10.1111\/1756-185x.12687","archive":["Portico"],"relation":{},"ISSN":["1756-1841","1756-185X"],"issn-type":[{"value":"1756-1841","type":"print"},{"value":"1756-185X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2015,7,31]]},"assertion":[{"value":"2015-07-31","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}