Fig. 2. Pneumoperitoneum (asterisks), evidenced by sub-hepatic free air, and pneumoretroperitoneum (arrows), evidenced by peri-nephric free air, observed in endoscopic retrograde cholangiopancreatography-related duodenal perforation.

Gastrointestinal Intervention 2016;5:15~21 https://doi.org/10.18528/gii150009

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