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Clinical presentation varies: oesophageal perforations can present with acute chest pain, odynophagia and vomiting, gastroduodenal perforations with acute severe abdominal pain, while colonic perforations tend to follow a slower progression course with secondary bacterial peritonitis or localised abscesses. A subset of patients may present with delayed symptoms, abscess mimicking an abdominal mass, or with sepsis.<\/jats:p><jats:p>Direct multidetector computed tomography (MDCT) findings support the diagnosis and localise the perforation site while ancillary findings may suggest underlying conditions that need further investigation following primary repair of ruptured bowel. MDCT findings include extraluminal gas, visible bowel wall discontinuity, extraluminal contrast, bowel wall thickening, abnormal mural enhancement, localised fat stranding and\/or free fluid, as well as localised phlegmon or abscess in contained perforations.<\/jats:p><jats:p>The purpose of this article is to review the spectrum of MDCT findings encountered in GIT perforation and emphasise the MDCT and clinical clues suggestive of the underlying aetiology and localisation of perforation site.<\/jats:p>","DOI":"10.1186\/s13244-019-0823-6","type":"journal-article","created":{"date-parts":[[2020,2,21]],"date-time":"2020-02-21T18:04:09Z","timestamp":1582308249000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":97,"title":["Gastrointestinal perforation: clinical and MDCT clues for identification of aetiology"],"prefix":"10.1186","volume":"11","author":[{"given":"Styliani","family":"Pouli","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Androniki","family":"Kozana","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ioanna","family":"Papakitsou","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maria","family":"Daskalogiannaki","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5281-475X","authenticated-orcid":false,"given":"Maria","family":"Raissaki","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2020,2,21]]},"reference":[{"issue":"3","key":"823_CR1","doi-asserted-by":"publisher","first-page":"599","DOI":"10.1016\/j.mcna.2007.12.004","volume":"92","author":"John T. 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