From the case:
Rigler sign (pneumoperitoneum)
Modality:
X-ray
Frontal
Rigler sign (pneumoperitoneum)
Patient Data
Gender: Female
Case Discussion
Rigler sign is a reliable indicator of pneumoperitoneum on a supine abdominal radiograph. The internal and external air (in bowel and in the peritoneal space, respectively) highlights the bowel wall, like a smooth line.
There is a large dome sign as well.
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