Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An indwelling left - sided catheter terminates in the mid SVC . Heart size remains slightly enlarged . No focal infiltrate or consolidation is identified to suggest pneumonia . There is no pleural effusion or pneumothorax . There is mild upper zone redistribution , unchanged , without other evidence of CHF . Elevated right hemidiaphragm is unchanged .
    OUTPUT:
    
Mild cardiomegaly and mild UZRD , unchanged . No evidence of pneumonia .