GLP-1 receptor agonist-associated eosinophilic duodenitis presenting as a bowel obstruction : a case report and literature review

Feb 26, 2026Acta gastro-enterologica Belgica

Bowel obstruction linked to inflammation in the small intestine caused by a diabetes drug: a case report and review

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Abstract

A rare adverse effect of oral semaglutide, severe gastric stasis, was observed in a patient treated for type 2 diabetes and obesity.

  • The patient experienced progressive upper gastrointestinal symptoms, leading to faecal vomiting.
  • Endoscopic examination showed significant eosinophilic infiltration in the duodenum.
  • This case is the first to link semaglutide to eosinophil-driven duodenitis causing mechanical bowel obstruction.
  • Clinicians should be aware of rare but serious gastrointestinal effects associated with GLP1 receptor agonists.
  • Early recognition of symptoms and consideration of eosinophilic gastrointestinal disease may aid in diagnosis and management.

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