Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Overlying EKG leads limit assessment . Subtle opacity is seen along the right heart border which could represent pneumonia . Left basal atelectasis is noted . No large effusion or pneumothorax . Patient is rotated limiting assessment of the mediastinum . The heart size appears grossly within normal limits . Bony structures are intact .
    OUTPUT:
    
Subtle opacity in the right lower lung abutting the right heart border is concerning for pneumonia . Please refer to subsequent CT for further details .