Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal radiograph of the chest demonstrates low lung volumes and a left lower lobe consolidation which obscures the left hemidiaphragm . This could represent pneumonia in the appropriate clinical setting . There is no evidence of pleural effusion , pneumothorax , or pulmonary edema . The heart size is top normal .
    OUTPUT:
    
Left lower lung opacification could represent pneumonia in the appropriate clinical setting . The above findings were communicated to Dr . ___ by Dr . ___ ___ telephone at 16 : 25 , five minutes after the finding was discovered .