Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP view of the chest provided . bilateral lower lung opacity could represent pleural effusion or atelectasis . Heart size is top normal . Mediastinal contour is unremarkable . No large pneumothorax . Bony structures are intact .
    OUTPUT:
    
Increased lower lung opacities may represent atelectasis / effusion . Consider dedicated PA and lateral views to better assess .