Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Upright AP and lateral views of the chest provided . Lower lung opacities on the frontal projection in the setting of markedly low lung volumes most likely represents bronchovascular crowding . No convincing sign of pneumonia , effusion or pneumothorax . Heart size can not be assessed . Mediastinal contour appears grossly unremarkable . Bony structures are intact .
    OUTPUT:
    
Limited exam due to low lung volumes with bronchovascular crowding likely accounting for the lower lung opacity seen on the frontal projection only . Consider dedicated PA and lateral views of the chest with more optimal inspiratory effort to better assessed .