Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Opacification of the right mid to lower hemi thorax is likely secondary to pleural effusion with compressive atelectasis . Difficult to exclude underlying pneumonia or mass . Followup to resolution advised . Left lung is clear . Heart size difficult to assess . Mediastinal contour grossly unremarkable . Bony structures intact .
    OUTPUT:
    
Right mid to lower lung opacity concerning for moderate pleural effusion and adjacent consolidation . Recommend followup to resolution .