Nonsurgical pneumoperitoneum.
The radiographic evidence of free air in the abdomen is usually associated with gastrointestinal perforations which represent a surgical emergency. However, pneumoperitoneum may also develop in a variety of benign conditions and following diagnostic or therapeutic procedures. This article provides a comprehensive list of nonsurgical causes of pneumoperitoneum.
D006801:Humans; D011027:Pneumoperitoneum / Q000000981:diagnostic imaging / Q000209:etiology*; D011859:Radiography