Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Upright PA and lateral radiographs of the chest . There is an opacity at the left lower lung with meniscus on the lateral radiograph compatible with pleural effusion likely with a component of volume loss . Underlying infection is a concern . The right lung is clear . The heart is not enlarged . The cardiomediastinal silhouette and hilar contours are normal . Surgical clips project over the left axilla . The included upper abdomen is unremarkable .
    OUTPUT:
    
Opacity at the left lower lung likely reflecting pleural effusion with a component of volume loss . Underlying infection should be considered . These results were telephoned to ___ by ___ at 11 :30 a .m . , ___ , 5 minutes after discovery .