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:

  • 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...”
  • Pneumoperitoneum (summary) - “ Pneumoperitoneum describes gas within the peritoneal cavity and is often the harbinger of a critical illness, often perforation of a hollow viscus...”

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

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