![](https://i0.wp.com/radrounds.com/wp-content/uploads/2021/03/DoubleWallsign.jpeg?resize=696%2C863&ssl=1)
One of the valuable signs in diagnosis of the pneumoperitoneum in supine film of the abdomen.
Credit: Case submitted by Dr. Saeed Rad MD to radRounds Radiology Network
One of the valuable signs in diagnosis of the pneumoperitoneum in supine film of the abdomen.
Credit: Case submitted by Dr. Saeed Rad MD to radRounds Radiology Network