Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single frontal view of the chest was obtained . The lung volumes are markedly low , limiting evaluation for pulmonary edema . Allowing for technical limitations , there is no focal consolidation , pleural effusion , or pneumothorax . The cardiomediastinal silhouette is unremarkable . Osseous structures are normal . No radiopaque foreign body .
    OUTPUT:
    
Markedly low lung volumes . No evidence of acute cardiopulmonary process .