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The woman suffered from antisynthetase syndrome\u2014systemic lupus erythematosus overlap syndrome\u2014was on continued immunosuppression and presented with fever, watery diarrhea, and vomiting. The amyloid showed a band-like congophilic subepithelial deposition throughout the large intestine and terminal ileum. This pattern of amyloid deposition can be distinguished from collagenous colitis by its pale blue-green color on Masson trichrome stain, frayed\/fuzzy edges, congophilia with apple-green birefringence, and SAA-positivity.<\/jats:p>","DOI":"10.1177\/10668969261459622","type":"journal-article","created":{"date-parts":[[2026,7,16]],"date-time":"2026-07-16T13:28:16Z","timestamp":1784208496000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Watery Diarrhea Caused by AA-Amyloid Deposition Mimicking Collagenous Colitis in Antisynthetase Syndrome-Lupus Overlap"],"prefix":"10.1177","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5520-8306","authenticated-orcid":false,"given":"Suvradeep","family":"Mitra","sequence":"first","affiliation":[{"name":"PGIMER"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Aravind","family":"Sekar","sequence":"additional","affiliation":[{"name":"PGIMER"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shankar","family":"Naidu","sequence":"additional","affiliation":[{"name":"PGIMER"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Neharika","family":"Saini","sequence":"additional","affiliation":[{"name":"PGIMER"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ritambhra","family":"Nada","sequence":"additional","affiliation":[{"name":"PGIMER"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sanjay","family":"Jain","sequence":"additional","affiliation":[{"name":"PGIMER"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2026,7,16]]},"reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.1097\/PAS.0000000000002173"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.3324\/haematol.2012.068155"},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.1186\/s12876-025-03670-z"},{"key":"e_1_3_2_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0344-0338(98)80134-9"},{"key":"e_1_3_2_6_2","doi-asserted-by":"publisher","DOI":"10.1046\/j.1365-2559.1997.5410810.x"},{"key":"e_1_3_2_7_2","doi-asserted-by":"publisher","DOI":"10.4318\/tjg.2011.023"},{"key":"e_1_3_2_8_2","doi-asserted-by":"publisher","DOI":"10.1080\/13506129.2024.2405948"},{"key":"e_1_3_2_9_2","doi-asserted-by":"publisher","DOI":"10.4253\/wjge.v13.i1.1"},{"key":"e_1_3_2_10_2","doi-asserted-by":"publisher","DOI":"10.4322\/acr.2019.128"},{"key":"e_1_3_2_11_2","doi-asserted-by":"publisher","DOI":"10.1007\/s12098-015-1913-1"},{"issue":"1","key":"e_1_3_2_12_2","first-page":"117","article-title":"Antisynthetase syndrome without myositis secondary to AA amyloidosis: a non-described association","volume":"31","author":"Toledo K","year":"2011","unstructured":"Toledo K, P\u00e9rez MJ, Espinosa M, Ortega R, Aljama P. Antisynthetase syndrome without myositis secondary to AA amyloidosis: a non-described association. 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