{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T04:32:56Z","timestamp":1791261176023,"version":"4.1.0"},"reference-count":41,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2022,1,29]],"date-time":"2022-01-29T00:00:00Z","timestamp":1643414400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>Leukocytoclastic vasculitis (LCV) is a rare extraintestinal manifestation (EIM) of ulcerative colitis (UC). Observations about its association with UC stem from case reports and small case series. Due to its rarity, more rigorous cross-sectional studies are scarce and difficult to conduct. The aim of this systematic review was to synthetize the knowledge on this association by reviewing published literature in the form of both case reports and case series; and report the findings according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. In contrast to LCV in Chron disease (CD), which occurs secondary to biologic therapies used for its treatment, LCV in UC is a true reactive skin manifestation. Both genders are equally affected. Palpable purpura (41%) and erythematous plaques (27%) are the most common clinical manifestations. In 41% of patients, the rash is painful, and the lower extremities are most commonly involved (73%). Systemic symptoms such as fever, arthralgias, fatigue, and malaise are seen in 60% of patients. Unlike previous reports, we found that LCV more commonly occurs after the UC diagnosis (59%), and 68% of patients have active intestinal disease at the time of LCV diagnosis. Antineutrophil cytoplasmic antibody (ANCA) is positive in 41% of patients, and 36% of patients have other EIMs present concomitantly with LCV. The majority of patients were treated with corticosteroids (77%), and two (10%) required colectomy to control UC and LCV symptoms. Aside from one patient who died from unrelated causes, all others survived with their rash typically resolving without scarring (82%).<\/jats:p>","DOI":"10.3390\/jcm11030739","type":"journal-article","created":{"date-parts":[[2022,1,29]],"date-time":"2022-01-29T23:02:06Z","timestamp":1643497326000},"page":"739","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":30,"title":["Clinical Manifestations of Leukocytoclastic Vasculitis, Treatment, and Outcome in Patients with Ulcerative Colitis: A Systematic Review of the Literature"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1137-1141","authenticated-orcid":false,"given":"Ivana","family":"Pantic","sequence":"first","affiliation":[{"name":"Clinic of Gastroenterology and Hepatology, University Clinical Centre of Serbia, 11000 Belgrade, Serbia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3790-3951","authenticated-orcid":false,"given":"Djordje","family":"Jevtic","sequence":"additional","affiliation":[{"name":"School of Medicine, University of Belgrade, 11000 Belgrade, Serbia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Charles W.","family":"Nordstrom","sequence":"additional","affiliation":[{"name":"Department of Hospital Medicine, Mayo Clinic Health System, Eau Claire, WI 54702, USA"},{"name":"Mayo Clinic Alix School of Medicine, Rochester, MN 55905, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cristian","family":"Madrid","sequence":"additional","affiliation":[{"name":"Department of Hospital Medicine, Mayo Clinic Health System, Eau Claire, WI 54702, USA"},{"name":"Mayo Clinic Alix School of Medicine, Rochester, MN 55905, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tamara","family":"Milovanovic","sequence":"additional","affiliation":[{"name":"Clinic of Gastroenterology and Hepatology, University Clinical Centre of Serbia, 11000 Belgrade, Serbia"},{"name":"School of Medicine, University of Belgrade, 11000 Belgrade, Serbia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5312-8812","authenticated-orcid":false,"given":"Igor","family":"Dumic","sequence":"additional","affiliation":[{"name":"Department of Hospital Medicine, Mayo Clinic Health System, Eau Claire, WI 54702, USA"},{"name":"Mayo Clinic Alix School of Medicine, Rochester, MN 55905, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,1,29]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1002\/art.37715","article-title":"2012 Revised International Chapel Hill Consensus Conference Nomenclature of Vasculitides","volume":"65","author":"Jennette","year":"2013","journal-title":"Arthritis Rheum."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"486","DOI":"10.1097\/01.dad.0000246646.45651.a2","article-title":"Cutaneous vasculitis update: Small vessel neutrophilic vasculitis syndromes","volume":"28","author":"Carlson","year":"2006","journal-title":"Am. 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