Rigler's sign

（重定向自Double wall sign）

Double wall sign. This is a secondary sign of pneumoperitoneum. Patient is supine, and air within the abdomen and lumen of the bowel accentuate both sides of the bowel wall.

Rigler's sign, also known as the double wall sign, is a radiologic sign seen on an x-ray of the abdomen when air is present on both sides of the intestine; a Rigler's sign is present when air is present on the inside (luminal side) and the outside (peritoneal side). Air in the peritoneum is considered abnormal, unless the patient had a recent abdominal surgery.

单词	Double wall sign
释义	Double wall sign 英语百科 Rigler's sign （重定向自Double wall sign） Rigler's sign, also known as the double wall sign, is a radiologic sign seen on an x-ray of the abdomen when air is present on both sides of the intestine; a Rigler's sign is present when air is present on the inside (luminal side) and the outside (peritoneal side). Air in the peritoneum is considered abnormal, unless the patient had a recent abdominal surgery.
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