title: An unusual cause of chest pain in army trainee - spontaneous pneumomediastinum.
abstract: This is a case report of spontaneous pneumomediastinum that occurred in a 19-year-old army trainee during his 2.4km run. Spontaneous pneumomediastinum is a rare disorder. It is usually precipitated by activities related to Valsalva manoeuvres such as strenuous physical activities, retching and vomiting. Treatment is expectant and the disorder usually resolves spontaneously within a few days. However, one must be aware of the disorder so that additional advice such as avoiding activities that involve Valsalva manoeuvres can be given.
authors.affiliation: Singapore General Hospital Internal Medicine, Department of Internal Medicine, Singapore General Hospital, Academia, Level 4. 20 College Road. 169856 Singapore, Singapore. lee.seng.swim@sgh.com.sg.
authors.forename: S S
authors.initials: SS
authors.lastname: Lee
mesh_terms: D000328:Adult; D002637:Chest Pain / Q000209:etiology*; D006801:Humans; D008297:Male; D008478:Mediastinal Emphysema / Q000150:complications* / Q000175:diagnosis; D008889:Military Personnel; D055815:Young Adult