{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,13]],"date-time":"2025-12-13T13:51:24Z","timestamp":1765633884840,"version":"3.48.0"},"reference-count":8,"publisher":"Oxford University Press (OUP)","issue":"12","license":[{"start":{"date-parts":[[2025,12,13]],"date-time":"2025-12-13T00:00:00Z","timestamp":1765584000000},"content-version":"vor","delay-in-days":14,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2025,11,29]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Superior mesenteric vein (SMV) and portal vein thrombosis are rare but serious causes of intestinal ischaemia, and haematemesis as an initial presentation is highly uncommon. We report the case of a 39-year-old previously healthy man who presented with acute haematemesis following diffuse abdominal pain. Contrast-enhanced computed tomography revealed complete thrombosis of the portal and SMV with ischaemic small bowel. Emergency laparotomy confirmed extensive jejunal and ileal gangrene, requiring near-total small-bowel resection with end jejunostomy. Postoperatively, the patient required intensive care with anticoagulation, parenteral nutrition, and broad-spectrum antimicrobials. His course was complicated by high jejunostomy output, catheter-related bloodstream infection, and bilateral pulmonary embolism despite anticoagulation. Thrombophilia testing revealed low Protein S levels. With continued supportive care, he gradually improved, his inflammatory markers normalized, and he was discharged haemodynamically stable with plans for long-term nutritional and anticoagulation support. This case illustrates a rare presentation of SMV and portal vein thrombosis, underscoring the importance of early diagnosis and intervention.<\/jats:p>","DOI":"10.1093\/jscr\/rjaf985","type":"journal-article","created":{"date-parts":[[2025,11,22]],"date-time":"2025-11-22T12:58:30Z","timestamp":1763816310000},"source":"Crossref","is-referenced-by-count":0,"title":["Massive haematemesis as the first manifestation of superior mesenteric and portal vein thrombosis in a healthy young adult"],"prefix":"10.1093","volume":"2025","author":[{"given":"Saleh","family":"Yasin","sequence":"first","affiliation":[{"name":"Surgery Department, Al Istishari Hospital , Al-Rehan Street, Al-Rehan Neighborhood, Ramallah P623 ,","place":["Palestine"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Abdelrahman","family":"Mohammed","sequence":"additional","affiliation":[{"name":"Internal Medicine Department, Al Istishari Hospital, Al-Rehan Street, Al-Rehan Neighborhood , Ramallah P623 ,","place":["Palestine"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-1109-6645","authenticated-orcid":false,"given":"Ahmad","family":"Zohud","sequence":"additional","affiliation":[{"name":"Department of Medicine, Faculty of Medicine and Health Sciences, An Najah National University , Rafidia, Nablus P400 ,","place":["Palestine"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Amro","family":"Odeh","sequence":"additional","affiliation":[{"name":"Department of Medicine, Faculty of Medicine and Health Sciences, Al-Quds University, University street, Abu Dis , Jerusalem P144 ,","place":["Palestine"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ayman","family":"Altarifi","sequence":"additional","affiliation":[{"name":"General Surgery, Endoscopy and Morbid Obesity Surgery, Al Istishari Hospital , Al-Rehan Street, Al-Rehan Neighborhood, Ramallah P623 ,","place":["Palestine"]}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2025,12,13]]},"reference":[{"key":"2025121308500637700_ref1","doi-asserted-by":"publisher","first-page":"155","DOI":"10.5758\/vsi.2014.30.4.155","article-title":"Combination of surgical thrombectomy and direct thrombolysis in acute abdomen with portal and superior mesenteric vein thrombosis","volume":"30","author":"Jung","year":"2014","journal-title":"Vasc Specialist Int"},{"key":"2025121308500637700_ref2","doi-asserted-by":"publisher","first-page":"1117","DOI":"10.1177\/1076029618774146","article-title":"Congenital thrombophilia in patients with superior mesenteric venous thrombosis or portal vein thrombosis","volume":"24","author":"Makoto","year":"2018","journal-title":"Clin Appl Thromb Hemost"},{"key":"2025121308500637700_ref3","doi-asserted-by":"publisher","first-page":"304","DOI":"10.3390\/diagnostics14030304","article-title":"Intestinal obstruction as initial presentation of idiopathic portal and mesenteric venous thrombosis: diagnosis, management, and literature review","volume":"14","author":"Stancu","year":"2024","journal-title":"Diagnostics"},{"key":"2025121308500637700_ref4","doi-asserted-by":"publisher","first-page":"27","DOI":"10.4314\/aas.v20i1.5","article-title":"Superior mesenteric venous thrombosis presenting with hematemesis: a case report","volume":"20","author":"Mackutwa","year":"2023","journal-title":"Ann Afr Surg"},{"key":"2025121308500637700_ref5","doi-asserted-by":"publisher","first-page":"675","DOI":"10.36347\/sasjs.2022.v08i11.003","article-title":"Thrombosis of the porta and superior mesenteric vein secondary to antiphospholipidic syndrome: case report","volume":"8","author":"Duran","year":"2022","journal-title":"SAS J Surg"},{"key":"2025121308500637700_ref6","doi-asserted-by":"publisher","first-page":"600","DOI":"10.1177\/000313480407000707","article-title":"Treatment of superior mesenteric and portal vein thrombosis with direct thrombolytic infusion via an operatively placed mesenteric catheter","volume":"70","author":"Kaplan","year":"2004","journal-title":"Am Surg"},{"key":"2025121308500637700_ref7","doi-asserted-by":"publisher","first-page":"490","DOI":"10.1053\/gast.2001.21209","article-title":"Current outcome of portal vein thrombosis in adults: risk and benefit of anticoagulant therapy","volume":"120","author":"Condat","year":"2001","journal-title":"Gastroenterology"},{"key":"2025121308500637700_ref8","doi-asserted-by":"publisher","first-page":"1","DOI":"10.1155\/2017\/1964765","article-title":"Endovascular treatment for acute thromboembolic occlusion of the superior mesenteric artery and the outcome comparison between endovascular and open surgical treatments: a retrospective study","volume":"2017","author":"Zhang","year":"2017","journal-title":"Biomed Res Int"}],"container-title":["Journal of Surgical Case 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