{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,2]],"date-time":"2026-05-02T12:54:51Z","timestamp":1777726491223,"version":"3.51.4"},"reference-count":28,"publisher":"SAGE Publications","issue":"9","license":[{"start":{"date-parts":[[2020,9,1]],"date-time":"2020-09-01T00:00:00Z","timestamp":1598918400000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["J Int Med Res"],"published-print":{"date-parts":[[2020,9]]},"abstract":"<jats:p>Meckel\u2019s diverticulum (MD) is a relatively common true congenital diverticulum on the ileum. Bleeding caused by polypoid hyperplasia of ectopic gastric mucosa in MD is rare. A 14-year-old Chinese boy presented with intermittent melena and haematochezia for 1 month. Laboratory data showed normocytic anaemia. Gastroscopic findings were normal. The patient underwent exploratory laparotomy without bowel preparation on day 2 because of sudden haematochezia and decreased haemoglobin. Intraoperative colonoscopy revealed inflammatory changes in the terminal ileal mucosa with diffuse haemorrhage. Melena with decreased haemoglobin recurred 20 days after the first operation. Computed tomography (CT) and angiography revealed a tubular lesion that was localised in the right lower abdominal quadrant. Single-photon emission computed tomography\/computed tomography (SPECT\/CT) fusion imaging with 99m-technetium pertechnetate confirmed moderately increased uptake in the distal ileum. Retrograde double-balloon enteroscopy (DBE) showed a diverticulum with prominent mucosal polypoid hyperplasia at an insertion depth of 100 cm from the anastomotic stoma. Diverticulectomy and end-to-end anastomosis were performed, and MD was confirmed by a histopathological examination. The patient\u2019s postoperative recovery was uneventful during the 2-month follow-up. MD with polypoid hyperplasia of ectopic gastric mucosa is rare. Complementary use of DBE and SPECT\/CT can accurately diagnose MD by providing anatomical and functional information.<\/jats:p>","DOI":"10.1177\/0300060520955055","type":"journal-article","created":{"date-parts":[[2020,9,21]],"date-time":"2020-09-21T07:20:12Z","timestamp":1600672812000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":1,"title":["Meckel\u2019s diverticulum with polypoid hyperplasia of ectopic gastric mucosa diagnosed by double-balloon enteroscopy and single-photon emission computed tomography\/computed tomography"],"prefix":"10.1177","volume":"48","author":[{"given":"Jun","family":"Yang","sequence":"first","affiliation":[{"name":"Department of Nuclear Medicine, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, P.R. 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