Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were obtained . In comparison to the prior studies , there is slightly increased opacification at the right base . Confluent opacification of the right mid and lower lung zones related to a combination of known mass , loculated effusions and consolidation / atelectasis . Cardiomediastinal silhouette is stable . The left lung is clear . There is no pneumothorax .
    OUTPUT:
    
Dense opacification of the right mid and lower lung related to known mass , loculated effusion and areas of consolidation / atelectasis has slightly increased .