Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The right Port - A - Cath term in cavoatrial junction , unchanged . Compared to prior chest radiographs and recent CT on ___ , the overall increased background density in the bilateral hemithoraces is most likely due to soft tissues . No consolidation . If clinical suspicion for infection is high , chest CT can further evaluate the lung parenchyma . No pleural effusions or pneumothorax . The heart size is enlarged but unchanged . The mediastinum is unchanged .
    OUTPUT:
    
Overall increased background density is likely due to soft tissues . No pneumonia .