{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,29]],"date-time":"2026-08-29T19:01:00Z","timestamp":1788030060763,"version":"build-2784847793"},"reference-count":14,"publisher":"Wiley","license":[{"start":{"date-parts":[[2021,1,18]],"date-time":"2021-01-18T00:00:00Z","timestamp":1610928000000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Case Reports in Surgery"],"published-print":{"date-parts":[[2021,1,18]]},"abstract":"<jats:p>Gastrointestinal stromal tumours (GIST) are neoplasms which originate from the mesenchymal tissue of the gastrointestinal tract. We report on a GIST presenting with acute gastrointestinal bleeding that mimicked an arteriovenous malformation (AVM) on imaging and at surgery. A 61-year-old female presented with a short history of melaena and severe anaemia. After resuscitation, upper gastrointestinal endoscopy showed a profusely bleeding varix in the proximal jejunum which was treated with glue injection. Contrast-enhanced CT showed a heterogeneous lesion in the proximal jejunum with strong arterial phase enhancement, supplied by a branch of the superior mesenteric artery and drained by a prominent tributary of the superior mesenteric vein, suggestive of an AVM. The mass was resected, and histology revealed a GIST with no evidence of an AVM or angiodysplasia. A GIST may be considered, though imaging suggests a diagnosis of an AVM in patients presenting with acute gastrointestinal bleeds. In such circumstances, surgical resection and pathological assessment will be confirmatory.<\/jats:p>","DOI":"10.1155\/2021\/6674612","type":"journal-article","created":{"date-parts":[[2021,1,18]],"date-time":"2021-01-18T19:35:35Z","timestamp":1610998535000},"page":"1-4","source":"Crossref","is-referenced-by-count":2,"title":["Acute Gastrointestinal Bleed from a Gastrointestinal Stromal Tumour Impersonating an Arteriovenous Malformation of the Jejunum"],"prefix":"10.1155","volume":"2021","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1239-7506","authenticated-orcid":true,"given":"Oshan","family":"Basnayake","sequence":"first","affiliation":[{"name":"Professorial Surgical Unit, National Hospital of Sri Lanka, Colombo, Sri Lanka"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0398-5197","authenticated-orcid":true,"given":"Umesh","family":"Jayarajah","sequence":"additional","affiliation":[{"name":"Professorial Surgical Unit, National Hospital of Sri Lanka, Colombo, Sri Lanka"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nilesh","family":"Fernandopulle","sequence":"additional","affiliation":[{"name":"Department of Surgery, Faculty of Medicine, University of Colombo, Sri Lanka"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6874-6904","authenticated-orcid":true,"given":"Sivasuriya","family":"Sivaganesh","sequence":"additional","affiliation":[{"name":"Department of Surgery, Faculty of Medicine, University of Colombo, Sri Lanka"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","reference":[{"key":"1","doi-asserted-by":"publisher","DOI":"10.1126\/science.279.5350.577"},{"key":"2","doi-asserted-by":"publisher","DOI":"10.1158\/1055-9965.EPI-14-1002"},{"key":"3","doi-asserted-by":"publisher","DOI":"10.1023\/B:DDAS.0000026316.29438.9b"},{"issue":"3","key":"4","first-page":"185","article-title":"Synchronous development of gastrointestinal stromal tumor and arteriovenous malformation in the jejunum: a case report","volume":"42","author":"S. H. Shim","year":"2008","journal-title":"The Korean Journal of Pathology"},{"key":"5","doi-asserted-by":"publisher","DOI":"10.1159\/000332443"},{"key":"6","first-page":"176","article-title":"Synchronous development of gastrointestinal stromal tumor and arteriovenous malformation in the jejunum","volume":"13","author":"S. J. 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