From the case: Pneumoperitoneum

Rigler sign
Rigler sign
Modality: X-ray (Frontal)

- “ The patient had pneumoperitoneum secondary to large bowel obstruction (subsequent CT not shown). ”

Used in the following article:

  • Rigler sign - “ The Rigler sign, also known as the double wall sign, is seen on a radiograph of the abdomen when the air is present on both sides of the intestine...”

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