Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Tracheostomy tube in situ with the tip 11 mm proximal to the carina . Right - sided PICC line in situ with the tip at the cavoatrial junction / proximal right atrium . Low lung volumes . The cardiomediastinal shadow is normal . Interval improvement in the left parahilar airspace opacification . Mild indistinctness of pulmonary vessels suggesting pulmonary edema unchanged . No silhouetting of the hemidiaphragms . No pleural effusions .
    OUTPUT:
    
Interval improvement in the left - sided airspace opacification . Mild pulmonary edema unchanged . No new airspace consolidation . Please take note of the low position of the tracheostomy tube . No pneumothorax .