Quigley R F, Anthony G S
Scott Med J. 1987 Feb;32(1):27-8. doi: 10.1177/003693308703200114.
Pneumomediastinum and pneumopericardium are uncommon conditions usually associated with trauma to the chest and oesophagus. However, they may occur spontaneously with excessive coughing and straining and are rare complications of pregnancy.
