Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A portable frontal chest radiograph demonstrates low lung volumes , exaggerating cardiac size . Allowing for this , the cardiomediastinal silhouette is within normal limits . There is no focal consolidation , pleural effusion , or pneumothorax . No acute osseous abnormality is visualized .
    OUTPUT:
    
No acute cardiopulmonary process .