Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left chest tube remains in stable position with the tip near the apex . There is no appreciable pneumothorax . Lung volumes are low . There is a new opacity at the right base concerning for pneumonia . There is no large pleural effusion . The heart is not enlarged . Mediastinal hilar contours are normal . Right clavicular fracture is re - demonstrated .
    OUTPUT:
    
1 . No evidence of pneumothorax 2 . New right basilar opacity worrisome for evolving pneumonia .