Findings and diagnosis

X-ray findings

There is a large pneumothorax identified on the left side with a collapsed left lung and depression of the left hemidiaphragm. A mild mediastinal shift is also noted.

The right lung shows chronic pulmonary opacities.

Differential diagnosis

Aspiration, bacterial or viral pneumonia
Acute aortic dissection
Myocardial infarction
Pneumothorax
Pulmonary embolism
Acute pericarditis
Esophageal spasm
Esophageal rupture
Rib fracture
Diaphragmatic injuries

Diagnosis: Large pneumothorax