{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,5]],"date-time":"2026-06-05T05:03:03Z","timestamp":1780635783592,"version":"3.54.1"},"reference-count":6,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,6,5]],"date-time":"2026-06-05T00:00:00Z","timestamp":1780617600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Med."],"abstract":"<jats:p>Duodenal web is rare in children, and reports of symptomatic cases with delayed presentation are even scarcer. This paper reports a 19-month-old female toddler admitted to hospital due to recurrent vomiting. Imaging examinations suggested duodenal obstruction, with an initial consideration of superior mesenteric artery syndrome or space-occupying lesion of the duodenum. In this case, circumferential thickening of the muscular layer of the duodenal wall was detected by endoscopic ultrasound (EUS), and pathological biopsy was performed simultaneously. Neoplastic lesions were systematically excluded, and the diagnosis of delayed-presentation duodenal web was established. The toddler successfully underwent endoscopic web incision eventually, avoiding open surgery. Postoperatively, the vomiting symptom was completely relieved without any complications. EUS clearly delineates the layered structure of the duodenal wall, thereby helping to elucidate the etiology of the obstruction and rule out neoplasms. This provides a direct basis for informed clinical decision-making regarding minimally invasive treatment of atypical, delayed-presentation duodenal obstruction.<\/jats:p>","DOI":"10.3389\/fmed.2026.1856865","type":"journal-article","created":{"date-parts":[[2026,6,5]],"date-time":"2026-06-05T04:29:30Z","timestamp":1780633770000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Case Report: Endoscopic ultrasound in the diagnosis and endoscopic treatment of a delayed-presentation duodenal web in a toddler"],"prefix":"10.3389","volume":"13","author":[{"given":"Qian","family":"Huang","sequence":"first","affiliation":[{"name":"Shenzhen University Medical School, Shenzhen University","place":["Shenzhen, Guangdong, China"]},{"name":"Department of General Surgery, Shenzhen Children\u2019s Hospital","place":["Shenzhen, Guangdong, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rensen","family":"Jiang","sequence":"additional","affiliation":[{"name":"Department of General Surgery, Shenzhen Children\u2019s Hospital","place":["Shenzhen, Guangdong, China"]},{"name":"Shenzhen Pediatrics Institute of Shantou University Medical College","place":["Shenzhen, Guangdong, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Miaobing","family":"Wu","sequence":"additional","affiliation":[{"name":"Department of General Surgery, Shenzhen Children\u2019s Hospital","place":["Shenzhen, Guangdong, China"]},{"name":"Shenzhen Pediatrics Institute of Shantou University Medical College","place":["Shenzhen, Guangdong, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiexing","family":"Long","sequence":"additional","affiliation":[{"name":"Department of General Surgery, Shenzhen Children\u2019s Hospital","place":["Shenzhen, Guangdong, China"]},{"name":"Shenzhen Pediatrics Institute of Shantou University Medical College","place":["Shenzhen, Guangdong, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jing","family":"Lao","sequence":"additional","affiliation":[{"name":"Department of General Surgery, Shenzhen Children\u2019s Hospital","place":["Shenzhen, Guangdong, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dongling","family":"Dai","sequence":"additional","affiliation":[{"name":"Department of Endoscopy Center, Shenzhen Children\u2019s Hospital","place":["Shenzhen, Guangdong, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Liang","family":"Liu","sequence":"additional","affiliation":[{"name":"Department of Endoscopy Center, Shenzhen Children\u2019s Hospital","place":["Shenzhen, Guangdong, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bin","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of General Surgery, Shenzhen Children\u2019s Hospital","place":["Shenzhen, Guangdong, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jianyao","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of General Surgery, Shenzhen Children\u2019s Hospital","place":["Shenzhen, Guangdong, China"]},{"name":"Shenzhen Children's Hospital, Affiliated to School of Medicine, Southern University of Science and Technology","place":["Shenzhen, Guangdong, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2026,6,5]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","first-page":"1814","DOI":"10.3390\/children9121814","article-title":"The incidence of associated anomalies in children with congenital duodenal obstruction-a retrospective cohort study of 112 patients","volume":"9","author":"Pijpers","year":"2022","journal-title":"Children"},{"key":"ref2","doi-asserted-by":"publisher","first-page":"A35","DOI":"10.1016\/j.cgh.2018.08.072","article-title":"Late-presenting duodenal web","volume":"18","author":"Zimmer","year":"2020","journal-title":"Clin Gastroenterol Hepatol"},{"key":"ref3","doi-asserted-by":"publisher","first-page":"e61532","DOI":"10.7759\/cureus.61532","article-title":"Understanding superior mesenteric artery syndrome: etiology, symptoms, diagnosis, and management","volume":"16","author":"Navandhar","year":"2024","journal-title":"Cureus"},{"key":"ref4","doi-asserted-by":"publisher","first-page":"e36","DOI":"10.1097\/MPG.0000000000003848","article-title":"Endoscopic balloon dilatation-based membrane resection for membranous duodenal stenosis: a feasibility and safety study (with video)","volume":"77","author":"Wang","year":"2023","journal-title":"J Pediatr Gastroenterol Nutr"},{"key":"ref5","doi-asserted-by":"publisher","first-page":"1023","DOI":"10.5114\/aoms.2016.60045","article-title":"Congenital duodenal obstruction with delayed presentation: seven years of experience","volume":"12","author":"Mousavi","year":"2016","journal-title":"Arch Med Sci"},{"key":"ref6","doi-asserted-by":"publisher","first-page":"995","DOI":"10.3390\/diagnostics13050995","article-title":"Ultrasonic diagnosis of intestinal obstruction in neonates-original article","volume":"13","author":"Guo","year":"2023","journal-title":"Diagnostics"}],"container-title":["Frontiers in Medicine"],"original-title":[],"link":[{"URL":"https:\/\/www.frontiersin.org\/articles\/10.3389\/fmed.2026.1856865\/full","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,6,5]],"date-time":"2026-06-05T04:29:51Z","timestamp":1780633791000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.frontiersin.org\/articles\/10.3389\/fmed.2026.1856865\/full"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,6,5]]},"references-count":6,"alternative-id":["10.3389\/fmed.2026.1856865"],"URL":"https:\/\/doi.org\/10.3389\/fmed.2026.1856865","relation":{},"ISSN":["2296-858X"],"issn-type":[{"value":"2296-858X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,6,5]]},"article-number":"1856865"}}