Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . There is a large right pleural effusion with collapse of the right middle and lower lobes . Underlying pneumonia difficult to exclude . Left lung is clear . Cardiomediastinal silhouette appears grossly unremarkable though the right heart border is obscured from view . Bony structures are intact .
    OUTPUT:
    
Large right pleural effusion with collapse of the right middle and lower lobes . Underlying pneumonia difficult to exclude . Followup to resolution advised .