Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The right PICC line ends in the lower SVC , overall unchanged . Lung volumes remain low . Atelectasis of the left lung base is mild . Heart size is mildly enlarged , unchanged . No definite pleural effusion or focal consolidation to suggest pneumonia . No pneumothorax .
    OUTPUT:
    
No significant interval change - low lung volumes and no definite focal consolidation to suggest pneumonia .