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IgG4-RSD typically presents sub acutely without significant constitutional symptoms or fever. Hepatic Inflammatory pseudotumor (HIP) is a rare manifestation of IgG4-RSD composed of dense lymphoplasmacytic infiltrate and extensive fibrosis. We present an older Asian male who presented with acute onset of fever and weight loss found to have IgG4-RSD complicated by a HIP and concomitant MSSA abscess.<\/jats:p>","DOI":"10.1177\/11795476211046398","type":"journal-article","created":{"date-parts":[[2021,10,30]],"date-time":"2021-10-30T00:31:41Z","timestamp":1635553901000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":1,"title":["Fevers, Sweats, Weight Loss, Oh My! When IgG4 Related Disease Comes Knocking.\u2004.\u2004."],"prefix":"10.1177","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5337-2463","authenticated-orcid":false,"given":"Francis","family":"Essien","sequence":"first","affiliation":[{"name":"Department of Internal Medicine, Keesler Air Force Base, Keesler Medical Center, Biloxi, MS, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Graey","family":"Wolfley","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine, Keesler Air Force Base, Keesler Medical Center, Biloxi, MS, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Joshua","family":"Tate","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine, Keesler Air Force Base, Keesler Medical Center, Biloxi, MS, USA"},{"name":"Department of Internal Medicine, Division of Endocrinology, Keesler Air Force Base, Keesler Medical Center, Biloxi, MS, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Matthew","family":"Carroll","sequence":"additional","affiliation":[{"name":"Department of Rheumatology, Singing River Health System, Ocean Springs, MS, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2021,10,29]]},"reference":[{"key":"bibr1-11795476211046398","doi-asserted-by":"publisher","DOI":"10.3349\/ymj.2012.53.1.15"},{"key":"bibr2-11795476211046398","doi-asserted-by":"publisher","DOI":"10.2183\/pjab.94.027"},{"key":"bibr3-11795476211046398","doi-asserted-by":"publisher","DOI":"10.3390\/ijms21145082"},{"key":"bibr4-11795476211046398","doi-asserted-by":"publisher","DOI":"10.3109\/s10165-011-0571-z"},{"key":"bibr5-11795476211046398","doi-asserted-by":"publisher","DOI":"10.3324\/haematol.2018.205526"},{"key":"bibr6-11795476211046398","doi-asserted-by":"publisher","DOI":"10.3748\/wjg.v25.i19.2308"},{"key":"bibr7-11795476211046398","first-page":"181","volume":"115","author":"B\u00fcchter M","year":"2018","journal-title":"Dtsch Arztebl Int"},{"key":"bibr8-11795476211046398","doi-asserted-by":"publisher","DOI":"10.1097\/MD.0000000000011146"},{"key":"bibr9-11795476211046398","volume":"97","author":"Mulki R","year":"2015","journal-title":"BMJ Case Rep"},{"key":"bibr10-11795476211046398","doi-asserted-by":"publisher","DOI":"10.1016\/j.gastrohep.2018.03.004"},{"key":"bibr11-11795476211046398","doi-asserted-by":"publisher","DOI":"10.1186\/s12876-016-0504-6"},{"key":"bibr12-11795476211046398","doi-asserted-by":"publisher","DOI":"10.5858\/arpa.2014-0181-RA"}],"container-title":["Clinical Medicine Insights: Case Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/11795476211046398","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/11795476211046398","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/11795476211046398","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T09:13:58Z","timestamp":1777454038000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/11795476211046398"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,1]]},"references-count":12,"alternative-id":["10.1177\/11795476211046398"],"URL":"https:\/\/doi.org\/10.1177\/11795476211046398","relation":{},"ISSN":["1179-5476","1179-5476"],"issn-type":[{"value":"1179-5476","type":"print"},{"value":"1179-5476","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,1]]},"article-number":"11795476211046398"}}