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Appendicitis: a rare adverse event in colonoscopy
  1. Samer Al-Dury1,
  2. Mohammad Khalil2,
  3. Riadh Sadik1,3 and
  4. Per Hedenström1,3
  1. 1Department of Medicine, Gastroenterology and hepatology unit, Sahlgrenska University Hospital, Gothenburg, Sweden
  2. 2Department of Radiology, Sahlgrenska University Hospital, Gothenburg, Sweden
  3. 3Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
  1. Correspondence to Dr Samer Al-Dury;{at}


We present a case of a 41-year-old woman who visited the emergency department (ED) with acute abdomen. She was diagnosed with perforated appendicitis and abscess formation on CT. She was treated conservatively with antibiotics and discharged. On control CT 3 months later, the appendix had healed, but signs of thickening of the terminal ileum were noticed and colonoscopy was performed, which was uneventful and showed no signs of inflammation. Twelve hours later, she developed pain in the right lower quadrant, followed by fever, and visited the ED. Physical examination and blood work showed signs consistent with acute appendicitis, and appendectomy was performed laparoscopically 6 hours later. The patient recovered remarkably shortly afterwards. Whether colonoscopy resulted in de novo appendicitis or exacerbated an already existing inflammation remains unknown. However, endoscopists should be aware of this rare, yet serious complication and consider it in the workup of post-colonoscopy abdominal pain.

  • endoscopy
  • gastrointestinal surgery

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  • Contributors SA-D was responsible for the patient’s case, performed the endoscopy and the outpatient clinic visit, reviewed the literature and wrote the draft of the manuscript. MK provided and interpreted the radiological images. RS helped in the assessment of the endoscopic findings and contributed to manuscript revision. PH reviewed the literature and contributed to manuscript drafting and final revision. All authors issued final approval for the version to be submitted.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.