Modality: X-ray (Frontal)

- “ Key learning points: Rigler sign is an uncommon but unmissable sign on abdominal x-ray for pneumoperitoneum intramural and portal venous gas is ...”

Used in the following articles:

  • Pneumoperitoneum (summary) - “ Pneumoperitoneum describes gas within the peritoneal cavity and is often the harbinger of a critical illness, often perforation of a hollow viscus...”
  • Abdominal x-ray (summary) - “ Abdominal radiographs can be a useful examination, but you need to think about the question you are asking before getting the test. Before the adv...”

View full size version of Pneumoperitoneum (Rigler sign) with portal venous and intramural gas from bowel ischaemia

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