Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographdemonstrates hypoinflated lungs with crowding of vasculature and heterogeneous right lower lobe opacity . No pleural effusion , pneumomediastinum , or pneumothorax . Heart size , mediastinal contour , and hila are unremarkable . Limited assessment of the upper abdomen is within normal limits .
    OUTPUT:
    
Right lower lobe atelectasis or aspiration . Clinical correlation is recommended .