Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable supine frontal view of the chest . A new left subclavian line ends at the confluence of the brachiocephalic veins . Mild to moderate pulmonary edema is unchanged . The mediastinum is widened . The heart is mildly enlarged . Blunting of the right costophrenic angle may represent a small pleural effusion . No pneumothorax is identified . There is no free air beneath the hemidiaphragms . No acute osseous abnormality is seen .
    OUTPUT:
    
New left subclavian line ends at the confluence of the brachiocephalic veins . No pneumothorax . Widened mediastinum . Unchanged pulmonary edema .