Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Vague opacities in the lower lungs are most likely reflective of atelectasis and bronchovascular crowding , less likely pneumonia . No large effusion or pneumothorax . No signs of edema . Cardiomediastinal silhouette is normal . Bony structures are intact . No free air below the right hemidiaphragm is seen .
    OUTPUT:
    
Subtle opacities in the lower lungs most compatible with atelectasis and bronchovascular crowding , less likely pneumonia .