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A fish bone perforated her small intestine, causing an acute abdomen. Emergency laparotomy was performed, successfully repairing all perforations. Patients with gastric bypass may have anatomical changes increasing their risk of foreign body-induced perforation. Clinicians should consider this possibility when assessing sudden abdominal pain. Awareness of uncommon causes of abdominal pain in post-gastric bypass patients is crucial for accurate diagnosis and treatment.<\/jats:p>","DOI":"10.1093\/jscr\/rjaf626","type":"journal-article","created":{"date-parts":[[2025,7,26]],"date-time":"2025-07-26T11:48:34Z","timestamp":1753530514000},"source":"Crossref","is-referenced-by-count":0,"title":["Small bowel perforation by ingested fish bone in a post-gastric bypass patient: a case report"],"prefix":"10.1093","volume":"2026","author":[{"ORCID":"https:\/\/orcid.org\/0009-0009-9896-6682","authenticated-orcid":false,"given":"Lina Berrada","family":"Dirhoussi","sequence":"first","affiliation":[{"name":"Department of General Surgery, H\u00f4pital Yverdon-les-Bains, \u00c9tablissement Hospitalier du Nord Vaudois (eHnv) , 1400 ,","place":["Switzerland"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pauline","family":"Curchod","sequence":"additional","affiliation":[{"name":"Department of General Surgery, H\u00f4pital 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