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A 76-year-old woman patient without a remarkable medical history underwent colonoscopy because of diarrhoea and black stool for 1 month. Colonoscopy was aborted at 23 cm from the anal verge on account of bleeding from the proximal colon. On retracting the endoscope, adipose tissue from the retroperitoneal space was observed within the colonic lumen (figure 1A). The patient complained of mild abdominal pain in the lower quadrants. Since colonic perforation was suspected, procedure was terminated and radiographs …
Contributors All the authors contributed equally.
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.
Patient consent for publication Obtained.
Provenance and peer review Not commissioned; internally peer reviewed.
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