Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes limits assessment . There is basal atelectasis , right greater than left without convincing evidence for pneumonia . No large effusion or pneumothorax . Heart size appears stable . Mediastinal contour unremarkable . Bony structures are intact .
    OUTPUT:
    
Low lung volumes with basal atelectasis . No overt signs of pneumonia .