Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single AP portable radiograph demonstrates low lung volumes . Right lower lung fields as well as left mid and lower lung field opacities are concerning for aspiration pneumonia . Heart size appears enlarged , slightly increased when compared to prior studies . Interstitial abnormality in the right apex is again identified . No large pleural effusion is seen . No acute osseous abnormality is identified .
    OUTPUT:
    
1 . Low lung volumes with bilateral opacities concerning for aspiration pneumonia . 2 . Heart appears enlarged , slightly increased in size when compared to prior studies . No overt pulmonary edema .