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Based on this, we report the prevalence, clinical manifestations, diagnostic approaches and management of GI involvement in each vasculitis.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Vasculitides are inflammatory blood vessel diseases, and the majority can affect the GI system with vascular, GI tract or solid organ involvement. GI involvement can sometimes complicate and delay the correct diagnosis. Clinical findings are usually nonspecific symptoms, such as fever, abdominal pain, nausea, vomiting and diarrhoea. Bleeding should alert paediatricians to the possibility of severe complicated vasculitis. Diagnosis relies mostly on imaging. If it goes unrecognised, GI involvement in paediatric vasculitis is a serious cause of morbidity and even mortality, related to bowel ischaemia and perforation. Treatment of GI symptoms depends on the type of vasculitis and usually involves high\u2010dose steroids and immunosuppressants.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>GI manifestations in the most common paediatric primary vasculitides were usually nonspecific, diagnosis mostly relied on imaging, and treatment usually involved high\u2010dose corticosteroids and immunosuppressants.<\/jats:p><\/jats:sec>","DOI":"10.1111\/apa.15381","type":"journal-article","created":{"date-parts":[[2020,6,1]],"date-time":"2020-06-01T15:50:59Z","timestamp":1591026659000},"page":"2226-2236","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Gastrointestinal involvement in childhood 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