Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal upright and lateral chest radiographs demonstrate well - expanded lungs . Cardiomediastinal contour is within normal limits . Focal opacities in the right mid and lower lung could represent infection . Blunting of posterior costophrenic angles suggest small effusions . No pneumothorax . Tube - like opacity projecting over the right costophrenic sulcus is thought to be external .
    OUTPUT:
    
Focal opacity in the right mid and lower lung could represent infection . Possible small effusions .