May Cause

Abnormal left upper quadrant abdominal gas collection

Acute diffuse mediastinal widening

Acute mediastinitis

Acute perigastric inflammation

Asymmetric lung size

Compression atelectasis

Extrinsic mass

Exudative pleural effusion

Lesion of gastric fundus

Localized elevation of hemidiaphragm

Massive pleural effusion

Mediastinal abscess

Paralyzed hemidiaphragm

Pleural effusion with disease in abdomen

Pleural effusion with disease in thorax

Pleural effusion with normal lungs

Small pleural effusion with subsegmental atelectasis