{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T19:14:43Z","timestamp":1791314083647,"version":"4.3.1"},"reference-count":5,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2025,9,15]],"date-time":"2025-09-15T00:00:00Z","timestamp":1757894400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2025,9,15]],"date-time":"2025-09-15T00:00:00Z","timestamp":1757894400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Pediatr Nephrol"],"published-print":{"date-parts":[[2026,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Membranous-like glomerulopathy with masked IgG-kappa deposits (MGMID) is a rare entity described primarily among young females with previously diagnosed autoimmune diseases. We present a 12-year-old female with systemic juvenile idiopathic arthritis (sJIA) with persistent non-nephrotic range proteinuria despite normal kidney function. She underwent two kidney biopsies with the second ultimately confirming her diagnosis. The initial biopsy was suggestive of mild C3 glomerulonephritis (C3GN). She was started on an angiotensin-converting enzyme inhibitor (ACE-I) without improvement. Proteinuria progressed to the nephrotic range, prompting initiation of high-dose steroids followed by a steroid taper. Mycophenolate was added during steroid weaning due to ongoing proteinuria. Despite full-dose mycophenolate and ACE-I therapy, a repeat biopsy was performed due to lack of response and revealed MGMID. She remains on full-dose mycophenolate and lisinopril with significant improvement in her proteinuria.<\/jats:p>","DOI":"10.1007\/s00467-025-06954-4","type":"journal-article","created":{"date-parts":[[2025,9,15]],"date-time":"2025-09-15T22:21:59Z","timestamp":1757974919000},"page":"81-84","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Membranous-like glomerulopathy with masked IgG-k deposits in a pediatric patient with juvenile idiopathic arthritis"],"prefix":"10.1007","volume":"41","author":[{"ORCID":"https:\/\/orcid.org\/0009-0002-1585-1388","authenticated-orcid":false,"given":"Priyanka","family":"Chati","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jill","family":"Krissberg","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kammi","family":"Henriksen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Brian","family":"Nolan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Meredith","family":"Harris","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2025,9,15]]},"reference":[{"key":"6954_CR1","doi-asserted-by":"publisher","unstructured":"Larsen CP, Ambruzs JM, Bonsib SM, Boils CL, Cossey LN, Messias NC, Silva FG, Wang YH, Gokden N, Walker PD (2014) Membranous-like glomerulopathy with masked IgG kappa deposits.\u00a0Kidney Int 86:154\u2013161. https:\/\/doi.org\/10.1038\/ki.2013.548","DOI":"10.1038\/ki.2013.548"},{"issue":"11S","key":"6954_CR2","doi-asserted-by":"publisher","first-page":"781","DOI":"10.1681\/ASN.20233411S1781a","volume":"34","author":"CKM Kodavanti","year":"2023","unstructured":"Kodavanti CKM, Schmidt DW, Kuperman MB, Garcia P (2023) Membranous-like glomerulopathy with masked IgG kappa deposits (MGMID) in a patient with Sezary syndrome. J Am Soc Nephrol 34(11S):781. https:\/\/doi.org\/10.1681\/ASN.20233411S1781a","journal-title":"J Am Soc Nephrol"},{"key":"6954_CR3","doi-asserted-by":"publisher","first-page":"107","DOI":"10.5414\/CN111305","volume":"102","author":"R Attieh","year":"2024","unstructured":"Attieh R, Merchant K, Yang Y, Sethna C, Jhaveri KD (2024) Membranous-like glomerulopathy with masked monotypic IgG deposits: a single center case series. Clin Nephrol 102:107\u2013112","journal-title":"Clin Nephrol"},{"key":"6954_CR4","doi-asserted-by":"publisher","unstructured":"Larsen CP, Boils CL, Cossey LN, Sharma SG, Walker PD (2016) Clinicopathologic features of membranous-like glomerulopathy with masked IgG kappa deposits.\u00a0Kidney Int Rep 1:299\u2013305. https:\/\/doi.org\/10.1016\/j.ekir.2016.08.012","DOI":"10.1016\/j.ekir.2016.08.012"},{"key":"6954_CR5","doi-asserted-by":"publisher","first-page":"439","DOI":"10.1053\/j.ajkd.2011.10.053","volume":"59","author":"A Belot","year":"2012","unstructured":"Belot A, Bader-Meunier B, Niaudet P, Salomon R, Prieur A-M, Noel L-H, Quartier P (2012) ANCA-associated glomerulonephritis in systemic-onset juvenile idiopathic arthritis. Am J Kidney Dis 59:439\u2013443. https:\/\/doi.org\/10.1053\/j.ajkd.2011.10.053","journal-title":"Am J Kidney Dis"}],"container-title":["Pediatric Nephrology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s00467-025-06954-4.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/article\/10.1007\/s00467-025-06954-4\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s00467-025-06954-4.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,12,12]],"date-time":"2025-12-12T08:39:34Z","timestamp":1765528774000},"score":1,"resource":{"primary":{"URL":"https:\/\/link.springer.com\/10.1007\/s00467-025-06954-4"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,9,15]]},"references-count":5,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2026,1]]}},"alternative-id":["6954"],"URL":"https:\/\/doi.org\/10.1007\/s00467-025-06954-4","relation":{},"ISSN":["0931-041X","1432-198X"],"issn-type":[{"value":"0931-041X","type":"print"},{"value":"1432-198X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,9,15]]},"assertion":[{"value":"2 June 2025","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"12 August 2025","order":2,"name":"revised","label":"Revised","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"19 August 2025","order":3,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"15 September 2025","order":4,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"The authors declare no competing interests.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}}]}}