Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . There is no evidence of pneumothorax . The cardiomediastinal silhouette is unremarkable . There is blunting of the right hemidiaphragm on frontal view , not seen on lateral view , likely represent a pleural effusion . No focal consolidation is seen . Limited views of the upper abdomen are unremarkable . No acute osseous abnormalities identified .
    OUTPUT:
    
No evidence of pneumothorax .