Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Lung volumes are somewhat low with streaky lower lobe opacities which could represent an atelectasis versus early pneumonia . No convincing signs of edema , effusion or pneumothorax . The heart size is top - normal . The mediastinal contours unremarkable . No free air below the right hemidiaphragm . Bony structures are intact .
    OUTPUT:
    
Top normal heart size with streaky opacities in the lower lungs likely atelectasis less likely pneumonia .